Tag Archives: corner

Photographs: Northern California, Photographs: San Francisco, Photographs: Urban/Street

Belmar Meat Market, The Mission

Leave a comment
Belmar Meat Market, The Mission
Belmar Meat Market, The Mission

Belmar Meat Market, The Mission. San Francisco, California. February 20, 2010. © Copyright G Dan Mitchell – all rights reserved.

Photograph of street scene in the Mission with man walking on sidewalk, Belmar Meat Market sign, and other urban elements – San Francisco, California.

Another Mission District street scene – a matter of spotting an interested set of urban storefronts, composing the shot, and then watching for the right person or persons to walk through the frame. I’m fascinated by the complexity of these urban scenes and by the individuality of the storefronts in this type of place – each one seems to reflect something about the surrounding community and the people who live there. In this one certain compositional elements and color relationships also caught my attention.

This photograph is not in the public domain and may not be used on websites, blogs, or in other media without advance permission from G Dan Mitchell.

G Dan Mitchell Photography | Twitter | Friendfeed | Facebook | Facebook Fan Page | Email

Technical Data:
Canon EOS 5D Mark II
Canon EF 50mm f/1.4 USM
ISO 200, f/8, 1/50 second

keywords: the, mission, san francisco, california, usa, north america, street, urban, city, man, walking, trash, recycle, can, receptacle, belmar, meat market, la gallinita, entrance, corner, gate, door, window, blinds, painting, decay, wrought, iron, tile, 24th, curb, travel, stock

Photographs: Central California, Photographs: San Francisco

Buildings Near 3rd and Market

Leave a comment
Buildings Near 3rd and Market

Buildings Near 3rd and Market. San Francisco, California. May 2, 2008. Copyright G Dan Mitchell – all rights reserved.

Three buildings near the corner of Third and Market Streets in San Francisco.

This is a photograph I made in mid-2008 while on one of my walks around The City. I was wandering around shooting handheld, mostly focusing on street scenes, when this “urban landscape” juxtaposing the shapes and colors of these three buildings near 3rd and Market Streets caught my attention.

This photograph is not in the public domain. It may not be used on websites, blogs, or in any other media without explicit advance permission from G Dan Mitchell.

keywords: California, San Francisco, Spring, third, 3rd, market, street, intersection, corner, downtown. urban, building, office, brown, yellow, window, arch, structure, architecture, usa, travel, stock

Equipment, Tests

An Example of Corner Performance on the Canon EF 24-105mm f/4 L IS

Leave a comment

Sample24105f16Corner.jpg
I’m taking the opportunity to use the photograph I posted earlier today to illustrate a couple of technical points about equipment and technique. Here is a 100% magnification 400 x 400 pixel crop from the far upper corner of the photograph.

Not much to look at, but that isn’t the point. At this resolution, you are looking at what would be a small section from a print that is four or five feet wide. Before I explain why I think this is important, some technical information about the image: Canon 5D, Canon EF 24-105mm f/4 L IS, 2.5 second exposure, f/16, focus point was on the foreground tree seen in the full image (e.g. – perhaps 50 feet closer than the subject of this test image), IS disabled, tripod, mirror lockup, remote release.

Some doubt the ability of this particular lens to produce sharp images. This sample challenges lens performance in a number of ways: it is a very low contrast image, the crop is from the far corner of the frame, the crop is not in the focus plane of the photograph, at f/16 the effects of diffraction blur should be just visible at this magnification.

With all of that context in mind, this cropped sample represents quite good performance. This section of the image would be very sharp, indeed, in a print at 16″ x 24″.

This photograph is not in the public domain. It may not be used on websites, blogs, or in any other media without explicit advance permission from G Dan Mitchell.

Equipment, Tests

Sharpness Test Updated

Leave a comment

I have updated my Sharpness and Aperture Selection of Full-Frame DSLRs post to include the corner crops from the same photos used for the center crops that were already there. Here’s the image I added – see the link for full information.