All posts by G Dan Mitchell

G Dan Mitchell, photographer and visual opportunist focusing on the Pacific coast, the Sierra Nevada, redwood forests, California oak/grasslands, California deserts, urban landscapes, night photography and more. Posting daily photographs since 2005, along with articles, reviews, news, and ideas.

The Canon EOS 5Ds R — Resolution Examples

… and the EF 100-400mm f/4.5-5.6L IS II lens.

A few days ago I spent four days in the high Sierra making photographs. At the end of one evening I made a photograph that isn’t intended to have any particular aesthetic value, but which was intended as a test of something about my new camera, a Canon EOS 5Ds R.* So I pointed it up at the top of this nearby granite dome just as the last light washed over its summit.

The technical information about the photograph:

First, the resulting photograph — which is, I will be the first to admit, not a stunning example of photographic art!

Lembert Dome Sunset Watcher
A lone person watches the Sierra sunset from the summit of Lembert Dome

Next a crop from the same photograph showing a little surprise at the edge of the precipice. This is the same photograph, but this time a 100% magnification crop of a 600 x 450 pixel section. (You’ll have to click on the photos to see the 600 x 450 versions, since the design of this website slightly downsizes photos posted at that size.)

Lembert Dome Sunset Watcher (crop)
A lone person watches the Sierra sunset from the summit of Lembert Dome

If you are wondering where this guy is in the full image, he is just below the right summit of the peak, slightly to the left of the start of the large shadow.

I’ll share some other examples later that are better optimized to show the resolution potential of this camera — photographs using something closer to the diffraction-limited aperture, focal lengths not at the extreme long end, with a lens that has even better resolution potential, and with a subject that is not so far away. (The distance introduces atmospheric elements that reduce resolution.)

Not bad, I’d say.

Added later:  Someone asked how the 5Ds R handles the fine details of feathers. I’m sorry to say that I have not photographed birds yet — that is more of winter thing for me. However, while making landscape photographs this past week, deer wandered into several of my scenes and I went ahead and photographed them. The following 100% magnification crop (actual pixel size) was also made using the EOS 100-400 f/4.5-5.6L IS II at 400mm, f/5.6, IS and AF on, ISO 100. The critter was in shadow, and exposure has been pushed here roughly a full stop. (Click the image to see the original 600 x 450 pixel image — the version on this page is slightly downsized.)

Deer — 100% magnification crop at 600 x 450
5Ds R, EOS 100-400mm f/4.5-f.5L IS II @ 400mm, f/5.6, 1/200, ISO 100, AF and IS in us

And one more example, also a 100% magnification crop: Canon EOS 5Ds R, ISO 100, 1/13 second, f/8, EF 100-400mm f/4.5-5.6L IS II @ 105mm

100% Magnification Crop — 5Ds R & 100-400 v2 lens
Canon EOS 5Ds R, ISO 100, 1/13 second, f/8, EF 100-400mm f/4.5-f5.6L IS II lens @ 105mm

5Ds and 5Ds R Articles:

  • Links to the Canon EOS 5Ds and the Canon EOS 5Ds R in this article go to site-sponsor B&H photography with whom I have an affiliate relationship. When you purchase through these links your price is the same, but a small percentage is returned to help support this website.

Mentioned in this article:

© Copyright 2015 G Dan Mitchell – all rights reserved.


G Dan Mitchell is a California photographer and visual opportunist. His book, “California’s Fall Color: A Photographer’s Guide to Autumn in the Sierra” is available from Heyday Books and Amazon.
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Tenaya Lake, First Light

Tenaya Lake, First Light
Early morning light shines on granite cliffs above Tenaya Lake, Yosemite National Park

Tenaya Lake, First Light. Yosemite National Park, California. July 15 2015. © Copyright 2015 G Dan Mitchell – all rights reserved.

Early morning light shines on granite cliffs above Tenaya Lake, Yosemite National Park

I have long been intrigued by a certain patch of sunlight that descends the granite slopes above this Yosemite lake in the mornings, and I planned to photograph it again on this trip to the park. I was up early on the first morning and off to this location, but I quickly got distracted by low fog floating in a very large nearby meadow. Somewhere I have heard an old saying about not ignoring the photograph in front of you for the possibility of another photograph that [i]might[/i] (or might not) happen, and I followed that “rule” and stopped and photographed the fog as the sun rose. By the time I finished this it was well past dawn, and although I continued on to the location of this photograph, when I got there the early light had transitioned into something much less interesting.

A couple of mornings later I thought I would try again. This time I was up even earlier and resolved to not stop for any but the most astonishing distractions, and I made it here before the first light was on the granite slopes. In this case, since I had a specific photograph in mind (and a few others that I might also try afterwards), I went to the exact spot where I wanted to be, pulled out the lens I knew I would need, set up and waited for the light. My location is not exactly an isolated or inaccessible one, and later on this day (and every summer day!) there would be lots of people and vehicles here. But at dawn even a place like this provides almost complete silence and the sense of deep stillness and huge space that I love in these mountains. I marvel that so many go to the Sierra yet so few seek out this quiet stillness. Soon the first tough of light appeared high on the dome to the left above the lake as beams of light began to pass between the peaks to the right, and I photographed as the light gradually worked its way down toward the lake.


G Dan Mitchell is a California photographer and visual opportunist. His book, “California’s Fall Color: A Photographer’s Guide to Autumn in the Sierra” is available from Heyday Books and Amazon.
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Tuolumne River, Evening

Tuolumne River, Evening
Evening clouds dissipate above the Tuolumne River, Yosemite National Park

Tuolumne River, Evening. Yosemite National Park, California. July 12, 2015. © Copyright 2015 G Dan Mitchell – all rights reserved.

Evening clouds dissipate above the Tuolumne River, Yosemite National Park

For the past few days I’ve been photographing in the Yosemite high country. When arriving at some familiar places in the Sierra Nevada I tend to follow certain rituals. I often arrive in the middle of the day and whenever possible on the day when the largest number of visitors are leaving — this makes it a bit more likely that I’ll find a campsite. That’s how it worked out on this Sunday, when I was able to grab a tent campsite at Tuolumne Meadows, even though it is the start of the peak season. As usual, I spent an hour or so getting my basic camp set up, then sat for a while, resting up from the drive and eating lunch and thinking about where I might photograph later in the day. I finally came up with vaguest of vague plans: I would simply start out by driving back down the road a ways to see what I could find. This turned out to be fortuitous decision.

In some ways it was a typical high country summer evening, with clearing clouds from recent monsoonal rain softening the light a bit. I passed a beautiful clump of trees that were dramatically lit by the low-angle sun but there was no place to pull over. I continued on up the road a ways, finally turned around, and as I headed back I decided to pull over where I could take in the wider view. There were two vehicles in the pull-out already and as I pulled in I wondered if I was going to startle the woman getting out of the one right in front of me. I took another look and soon realized that she was my friend Claudia, and that the other car was her husband Michael’s vehicle. (It still astonishes me how often I run into friends in the Sierra.) After greetings we decided to wander out along the Tuolumne to see what evening would bring. They set out across the meadow and a few minutes later I followed. As I walked I became vaguely aware that another couple was following in the same direction and when we met up at the far side of the meadow we realized that there were Charlotte and Gary, yet another couple I know! Joining “forces,” now we wandered down the river this beautiful area of small trees, open views, granite slabs, and flowing water.


G Dan Mitchell is a California photographer and visual opportunist. His book, “California’s Fall Color: A Photographer’s Guide to Autumn in the Sierra” is available from Heyday Books and Amazon.
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Building Detail

Building Detail
Exterior surface of a Chicago building, including distorted window reflections

Building Detail. Chicago, Illinois. August 2, 2014. © Copyright 2014 G Dan Mitchell – all rights reserved.

Exterior surface of a Chicago building, including distorted window reflections

This is another small bit of Chicago urban landscape, this time a detail of a downtown building that contrasts the very regular and geometric shapes of textures of the vertical and horizontal features against the wildly random and distorted patterns in the windows.


G Dan Mitchell is a California photographer and visual opportunist. His book, “California’s Fall Color: A Photographer’s Guide to Autumn in the Sierra” is available from Heyday Books and Amazon.
Blog | About | Flickr | Twitter | FacebookGoogle+ | 500px.com | LinkedIn | Email


All media © Copyright G Dan Mitchell and others as indicated. Any use requires advance permission from G Dan Mitchell.