Tag Archives: dark

Commentary, Equipment, Post-processing Workflow, Technique

Post-Processing: A Shadow Recovery Example

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(In another forum someone asked a question – actually, more like posed a challenge – related to how much usable detail and quality could be extracted from a raw file that contained areas of very low luminosity, as could happen with a badly underexposed image or with an image of a scene with a very large dynamic range. Since I went to the work of responding and illustrating my response, I figured that I might as well share it here, too. With minor revisions, here it is.)

First, I actually have a “real” version of this photograph in which highlights were slightly blown, but which I preferred to use since I could bring them back in post and get a bit more shadow detail to start with. (It looks a bit bright to me as an on-screen jpg, but it makes a fine print.) That photograph ended up looking like this:

Kolob Canyon, Morning - Morning light slants over the top of sandstone cliffs above early autumn foliage in Kolob Canyon, Zion National Park
Morning light slants over the top of sandstone cliffs above early autumn foliage in Kolob Canyon, Zion National Park

This photograph and the other I’ll move to below were both shot from a tripod with a Canon EOS 5D Mark II at ISO 100 using the Canon EF 24-105mm f/4L IS at f/16. While the “keeper” used for the photograph above had a 1/4 second exposure, the example I’ll use below was shot at 1/30 second.

The exposure challenge in this scene was the very large dynamic range between the bright spot of sky at the head of the canyon and the much darker colorful foliage in relatively deep shadow in the foreground. Exposing for optimal quality in the foreground would completely blow out the sky, while exposing for the sky would necessarily grossly underexpose the foreground.

I originally thought that I might like to have four bracketed exposures in case that would let me produce a better final image via layer blending, but it turned out to be unnecessary and the final image (as shown above) has a single source file with no blending. However, this means that I still happen to have one very badly underexposed (by three stops) version at 1/30 second which I’ll use here as the starting point for what I plan to illustrate in this post. Follow along with me and see what I can do with the very underexposed version of the file… Continue reading Post-Processing: A Shadow Recovery Example →

Photographs: Desert, Photographs: Nature, Photographs: The Southwest, Photographs: Utah

Hanging Branch with Yellow Leaves, Sandstone Wall

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Hanging Branch with Yellow Leaves, Sandstone Wall - A branch covered in yellow autumn leaves hands over a dark sandstone wall, Zion National Park
A branch covered in yellow autumn leaves hands over a dark sandstone wall, Zion National Park

Hanging Branch with Yellow Leaves, Sandstone Wall. Zion National Park, Utah. October 22, 2012. © Copyright 2012 G Dan Mitchell – all rights reserved.

A branch covered in yellow autumn leaves hands over a dark sandstone wall, Zion National Park

This is another photograph made in a short slot canyon in the high country of Zion National Park. At this point, it may be clear that I have a bit of an obsession with plants in front of rock of various sorts, and I was intrigued by this bundle of branches covered with yellow fall leaves that was dangling down onto the rocky wall of sculpted sandstone in this canyon and the way that the branch shapes were juxtaposed with the horizontal patterns in the rock and the diagonal fracture dropping from left to right.

It is easy and so tempting to focus on the beautiful red-toned rock, but there are many other colors to see as well. They range from the nearly white sandstone found in some layers, through intense yellows, and all the way to nearly black, especially where lichen or moss grows on the rock. The surface of the rock in this scene is very complex. Not only is the underlying striation visible, but various sorts of lichen have added color and texture – including the lighter blotches near the bottom of the frame and the slightly more subtle red spots lining portions of the fracture.

G Dan Mitchell is a California photographer whose subjects include the Pacific coast, redwood forests, central California oak/grasslands, the Sierra Nevada, California deserts, urban landscapes, night photography, and more.
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Text, photographs, and other media are © Copyright G Dan Mitchell (or others when indicated) and are not in the public domain and may not be used on websites, blogs, or in other media without advance permission from G Dan Mitchell.

Photographs: Architecture, Photographs: Night, Photographs: Northern California, Photographs: Structures and Objects, Photographs: Urban/Street

Industry Noir

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Industry Noir - A night scene in an artificially-lit industrial area of the Mare Island Naval Ship Yard.
A night scene in an artificially-lit industrial area of the Mare Island Naval Ship Yard.

Industry Noir. Mare Island Naval Ship Yard, California. March 3, 2012. © Copyright 2012 G Dan Mitchell – all rights reserved.

A night scene in an artificially-lit industrial area of the Mare Island Naval Ship Yard.

Given some of the other iconic and impressive things that may be photographed at the Mare Island Naval Ship Yard, this is sort of a normal looking scene. However, as one who has photographed there quite a bit at night, somehow it seems to capture – for me, anyway – something about the way the place feels. Wandering about among very old, very abandoned, and very dilapidated old structures in the quiet of the night, sometimes things can feel just a bit strange, and a glow from inside a window on the second story of a building or the reflection of a soft interior light can sort of make you wonder just a bit.

To be honest, I’m rarely scared or nervous when shooting there. For the most part the experience is a very quiet, slow, and contemplative one. But I recall one night that was a bit different. I had arrived early – before the sun set – and had met up with a group of fellow night photographers. They had some plans to shoot in a particular area, but I really wanted to shoot something else at first. So I told them to go ahead and start and that I would find them a bit later after shooting my first subject. Finishing with that work a half hour or so later I headed off in the direction they had gone, stopping to make more photographs along the way. But I never saw them again. I continued shooting along, wandering along deserted old streets and up alleys behind abandoned buildings. Finally at one point I suddenly became aware of being very alone in a very dark place and, for the first and only time at MINSY, I became nervous – and quickly packed up, returned to my car, and left. This photograph reminds me of that just a bit…

G Dan Mitchell is a California photographer whose subjects include the Pacific coast, redwood forests, central California oak/grasslands, the Sierra Nevada, California deserts, urban landscapes, night photography, and more.
Blog | About | Flickr | Twitter | Facebook | Google+ | 500px.com | LinkedIn | Email

Text, photographs, and other media are © Copyright G Dan Mitchell (or others when indicated) and are not in the public domain and may not be used on websites, blogs, or in other media without advance permission from G Dan Mitchell.

Photographs: Coastal Redwoods, Photographs: Nature, Photographs: Northern California

Trillium Flowers, Redwood Forest

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Trillium Flowers, Redwood Forest - Trillium Flowers, Redwood Forest
Trillium flowers bloom beneath the redwood forest, Northern California.

Trillium Flowers, Redwood Forest. Golden Gate National Recreation Area, California. March 3, 2012. © Copyright 2012 G Dan Mitchell – all rights reserved.

Trillium flowers bloom beneath the redwood forest, Northern California.

This is another in what is likely to be a series of photographs of trillium blooms in the redwood forest just north of San Francisco. On this morning I arrived before the crowds that often come across the Golden Gate to visit this nearby forest, and I walked into the redwood groves while there was still a relatively small number of people. Despite this being a very dry winter, some recent rains had moistened things up a bit and there was a fair amount of water around – and it almost seemed like plants that had been waiting for water were now making up for lost time.

At first I didn’t see too many trillium plants or flowers, but as I walked I began to come across more of them. A hike on a side-trail that traversed a hillside brought me to many more flowers, and in a few places they were thick enough and close enough together that I could include groups of them in the frame. Here I put on a very wide angle lens, and shot from a very close distance at a large aperture so that I could include this row of flowers and throw the background of the forest floor out of focus.

G Dan Mitchell is a California photographer whose subjects include the Pacific coast, redwood forests, central California oak/grasslands, the Sierra Nevada, California deserts, urban landscapes, night photography, and more.
Blog | About | Flickr | Twitter | Facebook | Google+ | 500px.com | LinkedIn | Email

Text, photographs, and other media are © Copyright G Dan Mitchell (or others when indicated) and are not in the public domain and may not be used on websites, blogs, or in other media without advance permission from G Dan Mitchell.