Tag Archives: blur

Photographs: Architecture, Photographs: New York City, Photographs: Structures and Objects, Photographs: Urban/Street

People, MoMA

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People, MoMA
People, MoMA

People, MoMA. Museum of Modern Art, New York City. August 18, 2010. © Copyright G Dan Mitchell – all rights reserved.

People moving on multiple levels of lobby and walkways at the Museum of Modern Art, New York.

I’ve been sitting on this photograph for a while, but I’ll interrupt the recent series of Sierra Nevada photographs to insert something more urban.

The photograph was made handheld inside a central atrium-like area of the Museum of Modern Art in New York City, a space from which layers of walkways could be seen. Although the slow shutter speed was somewhat a matter of necessity (but not totally) it also allowed me to let the moving figures blur, which suggests their motion more than would a faster shutter speed. I also removes the specific features of many of the closer people and lets them function more as generic figures in the image. There is more going on in the scene than might be apparent with a cursory glance.

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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: Nature, Photographs: Northern California, Photographs: Sierra Nevada, Photographs: Yosemite

Spring Cascade, Tioga Pass Road

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Spring Cascade, Tioga Pass Road
Spring Cascade, Tioga Pass Road

Spring Cascade, Tioga Pass Road. Yosemite National Park, California. June 18, 2011. © Copyright G Dan Mitchell – all rights reserved.

A seasonal stream cascades over a granite ledge along Tioga Pass Road, Yosemite National Park.

This small cascade is one of hundreds seen along Tioga Pass Road on June 18 this year, the day the park service opened the road for the season. The opening date was later than usual due to the heavy snowpack, and there was water everywhere as the snow melt accelerated in the late spring weather. It was almost embarrassingly easy to find and photograph these subjects – this one was right next to the roadway.

This is part of a larger cascade, out of view to the right, that flows off the top of a granite area and drops quickly across granite cliffs. Here the water strikes a slanting ledge and bits of spray explode almost like Fourth of July fireworks. Obviously, the somewhat unusually long shutter speed was selected with this effect in mind. The reddish plants to the left, just beginning to come back to life after the long winter, hint at the early date in the season.

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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.

Commentary, Equipment, Ideas

Myth: Diffraction and Motion Blur Worsen With More Megapixels

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They don’t.

Another post that I wrote just before this one (“Why Your 21MP File “Looks Softer” Than Your 12MP File at 100%“) explains why pixel-peeping* photographers might imagine that cameras with greater photosite density (e.g. – “more megapixels”) might produce “softer” photographs, based on what they observe when they compare 100% magnification images on the screen. These cameras do not produce softer images – the results will either be equal to or better than those from lower photosite density cameras in this regard. You can follow the link to read the original post.

A reader wrote and suggested that perhaps the images from the camera with greater photosite density really are softer, but the cause is a greater susceptibility to diffraction blur or motion blur.

No. Neither is the case.

These are two additional misconceptions that can be fed by (yet again!) pondering 100% magnification crops on the screen without thinking through the actual (non-) effect of what you see there when it comes to actual photographs. Continue reading Myth: Diffraction and Motion Blur Worsen With More Megapixels →

Photographs: Nature, Photographs: Northern California, Photographs: Sierra Nevada, Photographs: Yosemite

Rushing Water and Granite Slab, Sierra Nevada

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Rushing Water and Granite Slab, Sierra Nevada
Rushing Water and Granite Slab, Sierra Nevada

Rushing Water and Granite Slab, Sierra Nevada. Yosemite National Park, California. June 28, 2010. © Copyright G Dan Mitchell – all rights reserved.

A Sierra Nevada creek, swollen from spring runoff, flows across granite slabs – Yosemite National Park.

The image and sound of spring runoff water rushing over granite slabs are common in the high Sierra. Though the scene is almost a generic one, for me it also brings to mind many very specific places and experiences throughout the range. (Some of my backpacking friends might think of a spot along Tyndall Creek on the John Muir Trail where we have camped more than once.)

The exact location of this little bit of cascading and rushing water is probably not very important – you are never far from a little scene like this if you are near almost any little creek high in the Sierra! Here the water flows mostly across very smooth rock – so smooth that you can see right through the rushing water to the rocks in many places. In this precise spot there is a weakness in the rock and a small ledge has formed, and the result is a bit of white water.

I’ll share a few technical observations about this photograph, too. First, there isn’t a sharp thing in the image! While sharp focus can be important, I don’t think it is here. (Though if you look closely, the patterns of the blurred, fast-moving water are sharp in a fuzzy sort of way. ;-) The rocks beneath the water cannot be sharp because they are blurred by the water; the water cannot be sharp since I intentionally chose a shutter speed that allowed motion blur. Second, I have to admit that I did not originally have a black and white photograph in mind when I made this exposure. I worked on it for a while in color and though I liked the motion of the water I just wasn’t happy with the coloration of the scene. I finally realized that this image wasn’t about the “reality” of the rocks and water but about creating an impression of the rushing water – and that perhaps monochrome might work. Third, this is yet another “landscape” photograph made with a lens that the “common wisdom” (which often turns out to be not so wise) would say is not a landscape lens – a 70-200mm zoom.

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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.