Tag Archives: 100

Deals and Sales

Think Tank Photo – Early ‘Black Friday’ Special on Camera Bags

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Site sponsor Think Tank Photo has announced a “Black Friday Special” that actually starts now. There is a $50 rebate on their rolling camera bags, and if you order a roller bag plus an Urban Disguise shoulder bag you are are eligible for a $100 rebate – plus the they currently offer free shipping on all Think Tank Photo gear. Click this link to take advantage of this offer – and you’ll be taken to the roller bag page where there is also a link to the rebate form.

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(I use Think Tank Photo’s Airport Accelerator Backpack  as my primary camera equipment bag. It holds my two full frame bodies, a bunch of lenses, electronic flash, various accessories, and more – and it has given me great service in all sorts of conditions.)

G Dan Mitchell is a California photographer and visual opportunist 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.

Commentary

High Line Park and IAC Building

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High Line Park and IAC Building
High Line Park and IAC Building

High Line Park and IAC Building. New York, New York. August 14, 2010. © Copyright G Dan Mitchell – all rights reserved.

People taking a summer evening walk along the High Line Elevated Park in Chelsea with the IAC Building and the 100 11th Building in the background, New York City.

I only spent a short time on one evening walking along the High Line Park, but I certainly found it to be an intriguing place, and one that I intend to visit again. I first stopped to photograph this spot when I saw a couple of musicians performing on the bench just beyond the people walking and standing in the foreground. But the “urban landscape” of buildings beyond is obviously very striking, especially in the evening light. I cannot identify all of the buildings in the photograph – my first attempts to find them via Google maps failed because the buildings are so new that you only see empty space and construction sites there. I finally determined that the building on the left with the “swooping” lines is the IAC Building, designed by Frank Gehry – which is obvious in retrospect. The taller building in the background (which I had taken to calling the “Mondrian building”) is the “100 11th” building, designed by a French architect named Nouvel.

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.

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Commentary

Canon EOS 5D Mark II Price Break?

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The Canon EOS 5D Mark II has been selling faster than the stores can ship them since the camera was introduced last year. One effect of the combination of popularity and short supply has been that the pricing has held firm. (In fact, if you were not careful and/or patient you might have paid significantly more than the list price.)

While I don’t see the price of this camera dropping significantly any time soon, I now see that there Canon is doing a promotion that can take $100 of the price of the camera.

Equipment, Tests

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

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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.