Posted on December 11, 2019
We tend to photograph the things we love most, but I don’t think that necessarily happens consciously. For example, I never appreciated the role the sky plays in my photography until someone pointed it out a few years ago. Browsing my galleries to verify, I was amazed at the percentage of my images that include at least one of the following: the sun, the moon, stars, a rainbow, lightning, or dramatic clouds. (And, as of last January, the northern lights.)
While I never set out to be a “skyscape” photographer, given my background, I guess it makes sense. (Or more succinctly, “Duh.”) As an astronomy enthusiast since I was a child, and an armchair meteorologist since my late teens, I spent most of my formative years with my eyes and mind on the sky. I continued these childhood interests into adulthood, studying both astronomy and meteorology in college (I even majored in astronomy for a few semesters), and to this day can’t pass up a book or article on either topic. Even without a camera, I can spend hours watching clouds form and dissipate, or gazing at the stars.
Despite a parallel interest in photography, as a film shooter I was frustrated by limitations that prevented me from photographing many of my favorite sky phenomena. While daylight sights like clouds and rainbows were doable, but daylight lightning was out of reach. Narrow dynamic range, a lack of exposure feedback, and inability to process a color image made photographing simultaneous detail in the landscape and the moon frustrating. But switching to digital photography finally provided the control over my color captures, control that had previously only been available to monochrome film shooters with access to a darkroom.
With my first DSLR, purchased more than 15 years ago (!), I suddenly had the exposure feedback and processing control I lacked. That camera struggled with ISOs above 400, but that was enough to handle moonlight and I was hooked on night photography. Nevertheless, for many years photographing the Milky Way and landscape detail with a single click (my own personal rule) seemed like a pipe dream. But unlike the film days, advancement in digital sensors seemed happen with each passing year, and for the last few years I’ve been able to add Milky Way photography to my night repertoire.
The same goes for daylight lightning—with my Lightning Trigger, I’m able to freeze bolts that come and go so fast they’re memories before my brain registers them. Not only that, we now have computers in our pockets that can tell us where lightning is firing almost in realtime.
My evolution to skyscape photography was gradual, paced mostly by the evolution of technology, but in hindsight, I feel a little foolish for taking so long to recognize the personal synergy created by combining these three lifelong interests. Now if I could only figure out a way to add baseball to the mix…
A few tips for good sky photography
About this image
I found this scene in October’s Yosemite Fall Color and Reflections workshop, on our last-minute (not part of the original plan) trip to Olmsted Point to photograph sunset and the Milky Way. The crescent moon wasn’t the prime prime goal of this shoot, but I knew it would be here when we arrived and had every intention of photographing it as big as possible. (Had I not known there’d be a chance to photograph the moon, I’d likely have left my Sony 200-600 lens behind.)
The challenges I dealt with composing this scene were extreme dynamic range and a (freezing) wind. Since a waxing crescent moon always sets shortly after the sun, which puts it in the brightest part of the sky above a fairly dark landscape, capturing the moon, sky color, and landscape detail is difficult to impossible. I solved this problem by positioning myself so the moon set behind a ridge lined with distinctive trees against the sky. With my Sony 200-600 G lens on my Sony a7RIV, I zoomed tight to enlarge the moon and exposed to make the trees a silhouette.
To mitigate vibration imposed by the breeze and magnified by my 600mm focal length, I bumped my ISO to 800, which allowed me to use a 1/25 second shutter speed. And just to be sure, I magnified the image in my viewfinder and checked its sharpness.
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Posted on October 13, 2019
Like a teenager with his first car, I was itching to take my brand new Sony 200-600 for a spin. But since I don’t photograph wildlife, my ultra-telephoto lenses are used mostly for the moon, and occasionally close-focus stuff like fall color and wildflowers. And as much as I wanted to try it on the moon, I thought the fall color in my Eastern Sierra workshop would be my first opportunity.
Because I schedule the Eastern Sierra workshop to thread the needle between the best chance for peak fall color at North Lake, while avoiding the Lone Pine Film Festival and the Bishop Classic Car Rally, it’s one of the few workshops I do that isn’t timed for something happening in the sky (like the moon, the Milky Way, the northern lights, or lightning). So imagine my excitement when, before this year’s Eastern Sierra workshop, I checked the moon and realized a 6% crescent would be setting behind the Sierra Crest between Lone Pine Peak and Mt. Whitney on the workshop’s first night. Oh boy!
I got the group in position that evening and we all had a blast photographing the new moon slipping toward the serrated Sierra peaks. It started near Lone Pine Peak, and moved closer to Mt. Whitney as it dropped through the darkening sky. My first frames, while the moon was still pretty high, were fairly wide, but as it dropped closer to the mountains, my composition tightened.
When the crescent was just a few degrees above the crest, I grabbed my 200-600 and went to work. But, also like a teenager with his first car, I soon got the urge to soup it up and reached for my Sony 2X teleconverter. This gave me 1200mm at 61 megapixels. Wow.
I always joke that I don’t photograph anything that moves because I want to know my subject will still be there when I’m ready, so for someone as deliberate as I am, it really is startling to see how fast the moon moves through a 1200mm frame. Okay, maybe not as fast as a lion chasing dinner, or a leaping salmon becoming dinner, but instead of trying to track it, I still found it easier to anticipate the spot where the moon would disappear and let it slip into my frame.
It was 35 minutes after sunset when the moon finally reached the crest, making the trickiest part about this scene the exposure. This is the kind of exposure that begs to be handled in Manual mode because a meter would have no clue that I wanted to capture enough contrast between the sky and peaks to create a silhouette, as well as definition in the moonshadow, without completely blowing out the crescent. I also knew that the properly exposed image would look like crap on my LCD (it would require processing to moderate the extreme dynamic range between the dark mountains and bright moon).
To get the exposure right, I slowly pushed the scene brighter until the small blob of highlights in my histogram (the moon) hit the right side, then gave it one more stop of light (so the moon looked completely blown in the preview), knowing (fingers crossed) I could recover them later. I was slightly apprehensive because I still hadn’t processed any images from my new Sony a7RIV, but I was confident that it would have at least as much dynamic range as as my a7RIII, and just approached the exposure the same. All’s well that ends well—phew.
In a workshop my own photography isn’t a priority, so I didn’t get a lot of opportunity to play with my new toys on that trip. But my sense is that I’m going to love this new lens. Though its size means the 200-600 probably won’t replace my Sony 100-400 GM lens (which I love, BTW) as a full-time passenger in my camera bag, it will almost certainly be my default “big moon” lens. And my preliminary feelings are that the dynamic range of the a7RIV is indeed at least as good as the a7RIII (which is pretty incredible too).
Helping my workshop group with this crescent moon shoot got me thinking about metering, and how important it is to have it down cold. I’ve written a document on metering that I provide to all my groups to help them get up to speed before each workshop, but I’ve actually changed the way I meter in the few years since I wrote it. The old approach isn’t invalid (in fact, I think any serious photographer should be able to meter the old fashioned way), but I do think live-view histograms have made it a lot easier. So this week I rewrote my document and am sharing it below. (Please forgive any typos—it’s a work in progress.)
Cameras seem to be getting “smarter” every year. So smart, in fact, that for most scenes, duplicating a two-dimensional version of what your eyes see is a simple matter of pointing your camera and clicking the shutter button. That’s fine if all you care about is recording a memory, but not only is there more to photography than approximating “reality,” there are many creative reasons to override the camera’s choices.
For the creative control that elevates your images above the billions of clicks being cranked out every day, giving your camera the control of photography’s most important decisions ignores an undeniable truth…
Sorry—mine is too. And while I can easily cite many examples, right now it’s just important to understand that your camera thinks the entire world is a middle tone. Regardless of what its meter “sees,” without intervention your camera will do everything in its power to make your picture a middle tone. Sunlit snowman? Lump of coal at the bottom of your Christmas stocking? It doesn’t matter—if you let your camera decide the exposure, your subject will turn out gray.
Modern technology offers faux-intelligence to help overcome this limitation. Usually called something like “matrix” or “evaluative” metering, this solution compares your scene to a large but finite internal database of choices, returning a metering decision based on the closest match. This works pretty well for conventional “tourist” snaps, but often struggles in the warm or dramatic light artistic photographers prefer—and it knows nothing of creativity. If you want to capture more than documentary “I was here” pictures, you really do need to take full control of your camera’s metering and exposure. Fortunately, this isn’t nearly as difficult as most people fear (or as it once was).
The amount of light captured for any given scene varies with the camera’s shutter speed, f-stop, and ISO settings. Photographers measure captured light in “stops,” much as a cook uses a cup (of sugar or flour or chocolate chips or whatever) to measure ingredients in a recipe. Adding or subtracting “stops” of light by increasing or decreasing the shutter speed, f-stop, or ISO makes an image brighter or darker.
The simple beauty of metering is that a stop of light is a stop of light is a stop of light—it’s always the same amount of light, whether you change it with the:
But while an aperture stop adds/subtracts the same amount of light as a shutter speed or ISO stop, the resulting picture can still vary significantly.
Your aperture choice determines the picture’s depth of field (DOF), while your shutter speed choice determines whether motion in the frame is stopped or blurred. And while an ISO stop also adds/subtracts the same amount of light as shutter speed and aperture without affecting motion and depth, image quality decreases as the ISO increases. So getting the light right is only part of the exposure objective—you also need to consider how you want to handle any motion in the scene, how much DOF to capture, and the ISO that generates the least noise.
Let’s say you’re photographing autumn leaves in a light breeze. You get the exposure right, but the leaves are slightly blurred at 1/15 second. To freeze that blur, you change your shutter speed to 1/30 second, which also reduces the light reaching the sensor by one stop. To replace that lost light (keep the exposure the same), you could open your aperture by a stop (change the f-stop), double the ISO, or make a combination of fractional f-stop and ISO adjustments that total one stop. Each choice will render a different result, but that’s a creative decision your camera isn’t capable of.
Today’s cameras have the ability to measure, or “meter” the light in a scene before the shutter clicks. In fact, most cameras have many different ways of evaluating a scene’s light. Your camera’s metering mode determines the amount of the frame the meter “sees.” The larger the area your meter measures, the greater the potential for a wide range of tones. Since most scenes have a range of tones from dark shadows to bright highlights, the meter will take an average of the tones it finds in its metering zone.
Metering mode options range from “spot” metering a very small part of the scene, to “matrix” (also known as “evaluative”), which looks at the entire scene and actually tries to guess at what it sees. Each camera manufacturer offers a variety of modes and there’s little consensus on name and function (different function for the same name, same function for different names) among manufacturers, so it’s best to read your camera’s manual to familiarize yourself with its metering modes.
Since I want as much control as possible, I prefer spot metering because it’s the most precise. The spot meter covers the smallest area of the frame possible, an imaginary circle in the center 3% (or so, depending on the camera) of the viewfinder. (Some cameras optionally allow you to spot meter on the current focus point instead of the center of the frame.) When spot metering, I can target the part of the frame I deem most important and base my exposure decision on the light reading there.
Spot metering isn’t available in all cameras (this was more true with older models). In some cameras, the most precise (smallest metering area) metering mode available is “partial,” which covers a little more of the scene, somewhere around 10%.
Regardless of the size of the metering zone, the camera will take an average of what it finds. In some modes that average is evenly extracted from the entire zone, in other modes, the average is biased toward the middle: “center-weighted.”
Don’t confuse the metering mode with the exposure mode. While the metering mode determines what the meter sees, the exposure mode determines the way the camera handles that information. Most mirrorless and DSLR (digital single lens reflex) cameras offer manual, aperture priority, shutter priority, plus a variety of program or automatic exposure modes. Serious landscape photographers usually forego the full automatic/program modes in favor of the manual (my preference) or aperture/shutter priority modes that offer more control.
If you select aperture or shutter priority mode, you specify the aperture (f-stop) or shutter speed, and the camera sets the shutter speed or f-stop that delivers a middle tone based on what the meter sees. But you’re not done. Unless you really do want the middle-tone result the camera desires (possible but far from certain), you then need to adjust the exposure compensation (usually identified by a +/- symbol) to specify the amount you want your subject to be above or below a middle tone.
For example, if you point your camera’s spot-meter at a bright, sunlit cloud, the camera will only give your picture enough light make the cloud a middle tone—but if you’ve only given your scene enough light to make a white cloud gray, it stands to reason that the rest of your picture will be too dark. To avoid this, you would adjust exposure compensation (the +/- symbol) to instruct your camera to make the cloud brighter than a middle tone by adding two stops of light (or however much light you want to give the cloud to make it whatever tone you think it should be).
Rather than aperture priority, I prefer manual mode because I want control: my camera should not be making decisions for me. And once it’s mastered (it really isn’t hard), I think manual metering is easier. But if you can successfully handle each exposure situation with aperture or shutter priority, you’ll be fine—just stay away from the full automatic modes.
I always try to use my camera’s best ISO, and the aperture that gives me the sharpest frame. Not just the desired DOF, but also the least diffraction (diffraction is a loss of detail caused when light passes through a small opening and spreads slightly—the smaller the opening, the greater the diffraction softening). But sometimes exposure-setting compromise is the only way to achieve the desired results.
For example, when DOF isn’t a consideration, I keep my f-stop in the f/8-f/11 range because it provides a reasonable amount of DOF, and that’s where lenses tend to be sharpest (least distortion), and diffraction is less of a concern (than it is at smaller apertures). But when I need a specific DOF, or want to capture a sunstar (small aperture), I have no problem compromising my f-stop setting to get there.
And I only compromise my ISO when there’s no other way to achieve a certain motion effect. So while ISO 100 is ideal (for my Sony a7RIV and the majority of other cameras), when the wind blows or I want to freeze moving water, I’ll increase my ISO to achieve the motion and DOF combination I need. And if I want a little more motion blur, I have no problem dropping down to ISO 50 to a allow a longer shutter speed.
The simplest way to minimize the need to compromise image quality is to use a tripod. A tripod removes camera shake from the exposure equation, meaning the only time shutter speed matters is when there’s motion in the scene. And when shutter speed doesn’t matter, you can always use the perfect ISO and aperture by going with whatever shutter speed you need, regardless of its length.
Some scenes are all about compromise, even with a tripod. For example, I’d love to photograph the Milky Way at ISO 100, f/8, 1/100 second, but that would give me a black frame. Since star motion increases with shutter speed, I push the ISO as far as I can without getting unfixable noise, open the aperture as wide as I can without obvious distortion—and I still have to live with a shutter speed that gives me a little star motion. All of these exposure choices are compromises that render less than perfect results, but without them, I’d have no Milky Way image at all.
Armed with all this exposure understanding, it’s time to think about the best way to read and capture the light in a scene. For most of my photography life, in manual mode I’d set my camera to its native ISO (or to the ISO/ASA of the film I had loaded), determine my aperture (based on the DOF I want and/or the sharpest f-stop for my lens), point my camera’s spot-meter zone at the area on brightest part of the scene, and dial my shutter speed until it indicated the spot-meter zone is the tone I want. (I chose the brightest part of the scene because I know if I don’t blow it out, nothing in my frame will be lost.)
During my film days, and in my early digital life, that approach served me well. In fact, I think every serious photographer should understand metering well enough to do it this way. But….
In the film days, we didn’t know if the exposure was right until the pictures were processed. To insure against missing the exposure, we’d bracket exposures by (usually) one stop on either side of what we believed to be the correct exposure. Today, thanks to the histogram, bracketing is no longer necessary.
The histogram is a graph of the tones in an image, from absolute black to absolute white. Instead of clicking and hoping as we did in the film days, the addition of a histogram on every digital camera (that’s not a smartphone) provides photographers instant feedback on each image’s exposure. Better still, live-view histograms in mirrorless viewfinders, or on DLSR and mirrorless LCD screens, provide that essential exposure feedback before we click the shutter.
While any graph has the potential to evoke flashbacks of high school science trauma, a histogram is really quite simple—simple enough to be read and interpreted in the blink of an eye. And not only is your histogram easy to read, it really is your most reliable source of exposure feedback.
Simple Histogram: The shadows are on the left and the highlights are on the right; the far left (0) is absolute black, and the far right (255) absolute white.
When an image is captured on a digital sensor, your camera’s “brain” samples each photosite (the sensor’s individual pixels comprising the megapixel number used to measure sensor resolution), determining a brightness value that ranges from 0 (black) to 255 (white). Every brightness value from 1 to 254 is a shade of gray—the higher a photosite’s number, the brighter its tone.
Armed with the brightness values for each photosite in the image, the camera starts building the image’s histogram. The horizontal axis of the histogram has 256 discrete columns (0-255), one for each possible brightness value, with the 0/black column on the far left, and the 255/white column on the far right (they don’t display as individual columns because they’re crammed so close together).
Despite millions of photosites to sample, your camera builds a new histogram for each image virtually instantaneously, adding each photosite’s brightness value to its corresponding column on the histogram, like stacking poker chips—the more photosites of a particular brightness value, the higher its corresponding column will spike.
The black-and-white histogram most of us are familiar with is the luminosity histogram. But each photosite on a conventional sensor actually measures the tone of one of three colors: red, green, and blue (RGB). The RGB histogram uses the same pixel sampling process to separate the luminosity histogram into three separate, more granular, graphs, one for each color.
The luminosity histogram shows the detail you captured, but it doesn’t tell you whether you lost color. In fact, the luminosity histogram could look fine even when two of the three RGB channels are clipped (cut off, indicating color is lost). So in high dynamic range scene (extreme highlights and shadows), or scenes with an extreme amount of one color (such a brilliant sunset or a backlit poppy), checking the RGB histogram to ensure that none of the image’s color channels is clipped is especially important. The solution for a clipped RGB channel (or two) is to reduce the exposure.
There’s no such thing as a “perfect” histogram shape. Rather, the histogram’s shape is determined by the distribution of light in the scene, while its left/right distribution (whether the graph is skewed to the left or right) is a function of the amount of exposure you’ve chosen to give your image. The histogram graph’s height is irrelevant—information that appears cut off at the top of the histogram just means the graph isn’t tall enough to display all the photosites possessing that tone (or range of tones).
When checking an image’s histogram for exposure, your primary concern should be to ensure that the none of the tone data is cut off on the left (lost shadows) or right (lost highlights). If your histogram appears cut-off on the left side, shadow detail is so dark that it registers as black. Conversely, if your histogram appears cut off on the right side, highlight detail is so bright that it registers as white.
Basing the image’s exposure on the way the picture looks on the LCD is the single biggest exposure mistake I see photographers make. The post-capture review image that displays on your camera’s LCD is great for checking composition, but the range of tones you can see in your review image varies with many factors, such as the review screen’s brightness setting and the amount of ambient light striking the LCD. Even more important, because there’s more information captured than the LCD preview can show, even in the best conditions, you’ll never know how much recoverable data exists in the extreme shadows and highlights by relying on the LCD preview.
It’s human nature to try to expose a scene so the picture on the LCD looks good, but an extreme dynamic range image that looks good on the LCD will likely have unusable highlights or shadows. As counterintuitive as it feels, exposing a high dynamic range scene enough to reveal detail in the darkest shadows brightens the entire scene (not just the shadows), likely pushing the image’s highlights to unrecoverable levels. And making an image dark enough on the LCD to salvage bright highlights darkens the entire scene, all but ensuring that the darkest shadows will be too black.
In fact, a properly exposed, a scene with both bright highlights and dark shadows, such as a sunrise or sunset, will look awful on the LCD (dark shadows and bright highlights) because there’s information there you can’t see (yet). The histogram provides the only reliable representation of the tones you captured (or, in your live-view LCD display or mirrorless electronic viewfinder, of the tones you’re about to capture).
Starting with the live-view screen, and now in mirrorless viewfinders, we can view our histogram before clicking the shutter. So instead of guessing the exposure settings that return the tones we want, we have an actual pre-capture picture of the tones to monitor and adjust.
Using the pre-capture histogram—almost always in my Sony mirrorless viewfinder, but the histogram on a mirrorless or DSLR LCD screen will work too—I start the exposure process as I always have. In manual exposure mode, I default to my camera’s best ISO (100 for most cameras, but definitely not all, so check your camera’s native ISO), and the best f-stop for my composition. I don’t touch these settings unless motion in my scene, such as wind or star movement, forces an ISO and/or f-stop compromise. With ISO and f-stop set, I slowly adjust my shutter speed with my eye on the histogram until it looks right. Click.
In a low or moderate contrast scene, I’ll have a little room on both sides of the histogram (the graph doesn’t bump up against either side)—a very easy scene to expose. But in a high dynamic range scene, the difference between the darkest shadows and brightest highlights might stretch beyond one or both sides of the histogram. When a high dynamic range scene forces me to choose between saving the highlights or the shadows, I almost always bias my exposure choice toward sparing the highlights, carefully dialing the shutter speed until the histogram bumps against the right side.
When forced to decide between the highlights or shadows, I almost always try to spare the highlights, for a couple of reasons: First, shadows are usually easy to recover than highlights; second, highlights are almost always more important than shadows. In fact, because the human eye is reflexively drawn to the brightest areas of the frame, I rarely have anything important in the shadows of a high dynamic range scene.
The post-capture histogram is usually more reliable than the pre-capture histogram. Sometimes this doesn’t matter, but in a high dynamic range scene, or any time I push my histogram close to the right side, I verify my exposure by checking the post-capture histogram. Another situation that can sometimes fool the pre-capture histogram is blurred (long exposure) whitewater.
Most mirrorless cameras, and many newer DSLRs, offer “zebra” highlight warnings in their pre-capture view. The first time I meter a scene, my camera’s current exposure settings (based on my previous scene) might be far from what the new scene requires. When that’s the case, I push my shutter speed fast until the zebras appear (if my prior exposure was too dark) or disappear (if my prior exposure was too bright), then refine the exposure more slowly while watching the histogram. While these alerts aren’t nearly as reliable as the histogram and should never be relied on for final exposure decisions, I use their appearance as a signal that it’s time to monitor my histogram.
Photographers who shoot raw make exposure decisions with the understanding that the capture exposure is simply the start, and the final exposure is determined by the processing. But the more photons you capture, the greater your latitude for adjustment later.
Trusting the histogram is a great start, but every camera model interprets and displays its exposure information differently. Added to that, the histogram is based on the jpeg the camera displays, so raw shooters always have more image information than their histogram shows—it’s important to know how much more.
With my Sony a7R bodies, I know I’m pretty safe pushing my histogram at least a full stop beyond the left or right (shadows and highlights) histogram boundary. This knowledge enables me to get the most out of even the most challenging high dynamic range scenes.
Like most things in photography, the more you do it, the easier it becomes. For many people reading this, my approach is nothing revolutionary. But if it’s all new to you, or if you feel a little rusty, I suggest that you go out and try it in a low stress situation. Keep working on it whenever you find yourself in a situation where getting the shot doesn’t feel life or death.
When you do get into one of those “Oh my God, look at that!” moments, go back to whatever feels most comfortable to you. I think you’ll find that it won’t take too much practice before the right way is also the most comfortable way.
Click an image for a closer look and to view a slide show.
Posted on June 12, 2018
Spend enough time on Facebook and Instagram and you get a pretty good idea of what it takes to make a picture that generates attention. The unfortunate consequence is a photographic feedback loop, where one ostentatious image inspires more similarly ostentatious images, which inspire more…, well, you get the point. This uninspired feedback loop reminds me of top-40 music, where one groundbreaking success generates a flood of uninspired clones. Catchy tunes are fine for a few listens, but few possess staying power. Contrast that to the Beatles, who aggressively resisted repetition and pursued new sounds that the world has been listing to pretty much nonstop for more than 50 years.
Admittedly, few artists are blessed with the Beatles’ creative genius, but that’s no excuse to shortcut creativity. The same holds for photography: images that elicit a reflexive Like and Share from digital passersby, and maybe (if you’re lucky) a “Stunning!” in the comments section, are forgotten with the next click. But images that resonate on a personal level by revealing something unseen, or by touching a hidden place inside the viewer, not only stop people in their tracks, they grab them and don’t let go.
Of course this sounds great in theory, but how is it accomplished? If the answer were easy, we’d all be doing it. But like Dorothy and the Ruby Slippers, perhaps we’ve had the power all along.
Because most people long for a connection with the world around them—not simply a connection with nature, but more importantly a connection with kindred souls—a good place to start would be to give viewers of your images something of yourself to latch on to by concentrating on subjects that resonate with you.
My own photography took a huge leap forward when I started photographing simply to please myself. The more I pursue moments in nature that touch me personally, (as if by magic) the more unique, gratifying, and successful my images became. While my most personal images don’t please everyone, the people they do reach seem to feel a deeper connection than they do to my images intended to impress.
Familiarity is the first step toward intimacy. With many picturesque trees and hills to work with, on this evening (as with many shoots) my compositions started wider, but didn’t seem to be about anything. But as the moon fell and the light faded, the scene’s essence began to materialize.
So what moved me to this composition? At the time it was enough that the scene finally felt right. But given the benefit of time and introspection, even though the moon and tree share the same frame, each is isolated: the tree is grounded in its terrestrial world, while the moon soars in its celestial world.
I’m writing this at Starbucks, very much by myself, but in the company of a dozen or so other people similarly isolated at the center of their world. It occurs to me that the shared isolation of the tree and moon makes a great metaphor for the human experience.
On the other hand, maybe it’s just a pretty picture….
Posted on February 19, 2017
“… the mighty Sierra, miles in height, and so gloriously colored and so radiant, it seemed not clothed with light but wholly composed of it, like the wall of some celestial city…. Then it seemed to me that the Sierra should be called, not the Nevada or Snowy Range, but the Range of Light.” — John Muir
Anyone who has spent time in or around the Sierra Nevada has to agree that there’s something special about its interaction with light. Towering one to two miles above the surrounding terrain for nearly all of its 400-mile length, the Sierra Nevada are California’s most prominent natural feature. But it’s not just prominence that sets the Sierra apart. The Sierra are almost entirely granite, an intrusive igneous rock comprised primarily of light-toned feldspar and liberally infused with lustrous quartz and mica. Because igneous intrusive rocks form deep beneath the Earth’s surface, constituent minerals cool and harden slowly enough for large, reflective crystals to form.
In addition to its inherently reflective qualities, granite is quite hard and resistant to erosion. Unlike the overlying sedimentary and metamorphic rock that washed downhill as the Sierra pushed (and continues to push) upward, granite remains intact when subjected to wind and rain. Eventually small cracks form; water percolating into these cracks expands as it freezes, widening the cracks further until the granite fractures and a large block separates. The result is large vertical and domed surfaces whose extreme slope and hardness are particularly inhospitable to plant life, even well below the timberline. Granite’s hardness also means that rather than crumbling beneath the weight of the numerous glaciers to scour the Sierra, much of the Sierra granite has been polished to a glassy sheen.
Granite’s light complexion, reflective inclusions, and abundance of exposed, polished surfaces make the Sierra particularly inclined to reflect the color of whatever light illuminates it. This relationship with light is quite evident in Yosemite Valley, nestled in the range’s more moderately sloped west side. When the sun strikes Yosemite’s Half Dome and El Capitan at day’s end, warm sunset light paints these monoliths in brilliant orange and red hues just before the sun is snuffed by the horizon. While this color can be seen at sunset year round, it takes center stage each February when sunset shadow and light conspire to highlight normally insignificant Horsetail Fall’s tumble down El Capitan’s east face.
As exquisite as the light on Yosemite’s granite is, I’m even more drawn to the Sierra’s east side, which gets its best sun at sunrise. Unlike the Sierra’s gradually sloped, relatively moist, and largely foliated west slopes, the Sierra’s east side is much steeper, drier, and therefore sparsely foliated and more exposed. Enhancing the drama, the Eastern Sierra’s towering granite face also catches the earliest possible sunlight, sunlight that has traveled farther and through purer air (because there fewer airborne pollutants in the morning in general, and the sunlight east of the Sierra traverses much less densely populated terrain).
My favorite place to watch the light play on the Eastern Sierra granite is in and near the Alabama Hills, two vertical miles beneath Mt. Whitney and the Sierra’s most precipitous section. Looming above the Owens Valley, 14,505 foot Mt. Whitney is the highest point in the 48 contiguous United States. Unlike many towering peaks that stand by themselves, Mt. Whitney is bounded by 13,000 foot Lone Pine Peak and 14,000 foot Mt. Williamson, all connected by a serrated ridge of 13,000+ foot sharks tooth prominences.
Before sunrise I like to arrive early enough to see the Sierra crest reflect the pale blue of the pre-dawn sky, then watch it warm gradually as the sky brightened before the approaching sun. The color reaches a crescendo when the sun’s longest wavelengths first kiss the highest peaks with pink alpenglow. As the rest of the sun’s visible wavelengths join the party, the crest warms to amber before finally cooling beneath the daylight-blue sky.
At the end of the day the best color arrives after the sun has long disappeared behind the crest and the entire scene is illuminated by a sky well on its way to night. Though the mountains’ color is more subtle than the sunrise show, the Eastern Sierra’s granite when imbued with the pale mauve of evening twilight is no less beautiful. Eventually night takes over and once again the Sierra granite throbs a soft blue.
Early last October I guided my Eastern Sierra workshop group up to Whitney Portal at the base of Mt. Whitney to photograph cascading Whitney Portal Fall in late afternoon shade. On the drive back down we squeezed into a small turnout not too far down the road for the closest view of Whitney that doesn’t require a serious hike. This year’s group got a bonus when a thin slice of brand new moon appeared shortly after sunset.
Mounting my Sony 70-200 f4 on my a7RII, I framed the scene as tightly as I could while still including both Mt. Whitney and the crescent moon. Though the sky was clear, a steady stream of small clouds materialized as if issued by a cloud making machine just out of sight behind the crest to the right of Whitney. Each new cloud scooted to the left and dissipated quickly in drier air near the summit. After composing, metering, and focusing, I waited for the next cloud to appear and clicked this frame in the purple twilight.
Posted on September 24, 2016
In a previous life, I spent a dozen or so years doing technical support. In this role, job-one was convincing people that, despite all failures and error messages to the contrary, they are in fact smarter than their computers. Most errors occur because the computer just didn’t understand: If I misspel a wurd, you still know what I meen (rite?); not so with a computer. A computer can’t anticipate, reason, or create; given a task, it will blithely continue repeating a mistake, no matter how egregious, until it is instructed otherwise, fails, or destroys itself.
All this applies equally to today’s “smart” cameras—no matter how advanced its technology, a camera just can’t compete with your brain. Really. If I’d have allowed my camera to decide the exposure for this crescent moon scene, I’d have ended up with a useless mess: The camera would have decided that the foreground hillside was important and allowed in enough light to expose distracting detail and completely wash out the color in the sky. But I knew better. Wanting to simplify the scene, I manually metered and banished the insignificant details to the black shadows, capturing only the moon’s delicate shape and a solitary oak silhouetted against the indigo twilight.
It’s scenes like this that cause me to never trust my camera’s decision making, and why, in my (many) decades of serious photography, I’ve never used anything but manual metering. And since I try to have elements at different depths throughout my frame, focus is almost always my decision, not my camera’s, as well.
Today’s cameras are more technologically advanced than ever—their auto exposure and focus capabilities are quite good, good enough that nobody should feel they must switch to manual if they fear it will diminish the pleasure they get from photography. But if you define photographic pleasure as getting the best possible images, try spending a little time mastering manual metering and hyperfocal focus, then use that knowledge to override your camera’s inclinations. In my workshops, where I teach (but never require) manual metering and hyperfocal focus to all who are interested, people frequently marvel at how easy and satisfying it is to take control of their camera.
(Images I couldn’t have done in Auto mode)
Posted on September 17, 2016
Photographers frequently complain about what their camera can’t do, and take for granted the things it does well. A lot of this is a frustration with the inability to duplicate the world the way we see it. But honestly, what fun is that? My favorite photographs are those that show me something I might have overlooked or were not visible to my eye to my eye at all. As someone who tries to photograph a world untouched by the hand of Man, I particularly love the camera’s ability to return me to simpler times, reducing a scene to its essence by subtracting reminders of human incursion.
I recently returned to this small stand of oak trees huddled atop a hill in the low foothills east of Sacramento. Since I first photographed this scene over ten years ago, the peaceful country road “my” hill overlooks has evolved into a bustling artery for oblivious commuters. More recently, fencing has sprung up and an arcing dirt road has been carved into the hillside, a harbinger I fear of an impending subdivision. They’re everywhere up here now, these cookie-cutter developments with meaningless, corporate-crafted street names (Aspen Meadows Drive, Teakwood Court), devouring this once bucolic setting like a stage-4 cancer.
Despite the distractions, my camera’s “limited” vision instantly returns me to more peaceful times. Gone in a shutter-click are the highway’s roar and choking exhaust, while the encroaching suburbs are banished by the narrow view of a telephoto lens. And that scar of a road? It disappears in the shadows of the camera’s narrow dynamic range.
Click an image for a closer look and slide show. Refresh the window to reorder the display.
Posted on August 15, 2016
There are many great reasons to be a landscape photographer in California. Summer isn’t one of them. Most people find California’s benign whether appealing—our mild winters and dry summers are one of the Golden State’s prime attractions. But to photographers, blue skies are boring, and California’s summer skies are nothing if not blue.
We say goodbye to our clouds in May, and I go stir crazy waiting for their return in October. One summertime solution is night photography, which requires clear skies. As an added bonus, summer’s warm temperatures make fumbling with camera gear and standing around in the dark much more tolerable, and the Milky Way’s bright center is very much a summer feature. California’s dense population means extreme light pollution through much of the state, but our proximity to mountains make escaping the light relatively easy in summer.
Because I can’t always make it to the mountains, I’ve found other photo opportunities in the foothills closer to home. The wildflowers of spring are gone, and the sun has burned the once green grass a golden brown, but the foothill’s oak trees are reliable silhouettes against the colorful twilight sky. Once upon a time I was satisfied with simple silhouettes, but in recent years I’ve made an effort to include a crescent moon in my foothill oak silhouette scenes.
A crescent moon only appears in close proximity to the sun, hanging in the brightest part of the post-sunset/pre-sunrise sky, above a (relatively) dark landscape. The more of the moon that’s illuminated, the farther in the sky from the sun it will hover (a full moon is exactly opposite the sun, rising at sunset and setting at sunrise). Since a crescent rises and sets just before or after the sun, there’s not a lot of time when it’s above the horizon and the sky is dark enough for its thin outline to stand out.
Getting a crescent moon to align with my foreground subjects is all about timing—for example, some months a new moon follows the sun too closely, dropping below the horizon before the sky has darkened enough to reveal it. The next night the moon lags so far behind the sun that that getting it in the frame with my subject before the sky darkens too much requires a moon-shrinking wide angle lens. As much as I enjoy accenting a scene with a small crescent, I truly love photographing the moon large.
My most recent attempt came last Thursday, a day I’d circled in my calendar several months ago after calculating that the moon would be in the perfect twilight window—not too low or too high—for my favorite trees. My brother and I started the evening at a location with a lower horizon so we could photograph the sun setting into the trees (I blogged about that shoot last week), then zipped up the road to a spot that I’ve been photographing for years.
Sometimes I can photograph this scene from the road, but in summer the new moon sets so far north that we had to angle a little south and climb one small hill and circle another to align it with the trees in the distance. Aligning the trees and moon enabled me to shoot the entire scene with my Tamron 150-600 and Sony a6300 for maximum magnification.
There are actually two trees side-by-side atop this distant hill, but I had so much magnification, I could only photograph one at a time. I gave both trees equal time—today’s image came early in the shoot, when the moon aligned better with the left-most tree. As the moon descended to the right, I eventually turned my attention to the other tree.
Regardless of the tree I was working on, I moved around a lot, left/right and up/back, dodging cow pies, to balance the moon and tree in the frame and find a relationship that worked. By ascending a small hill behind me, I was even able to extend the shoot a few minutes before the moon finally disappeared.
It would have been very easy to stay home and do something else that night. I know these simple images aren’t big money makers, and summer moon and oak silhouettes may not be as spectacular as Yosemite Valley covered with snow, or a rainbow above the Grand Canyon, but I find photographing them no less personally rewarding. (I already can’t wait until next month.)
One more thing: See the small dot of light on the right, at about the same level as the moon? That’s Mercury, another sun-hugging visitor only visible in the dawn or dusk twilight glow.