Tag Archives: 5D

Photographs: Central California, Photographs: Night, Photographs: Ocean & Coast, Photographs: Structures and Objects, Photographs: Urban/Street

Mare Island Buildings With Moon Shadows

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Mare Island Buildings With Moon Shadows

Mare Island Buildings With Moon Shadows. Mare Island Naval Shipyard, California. February 7, 2009. © Copyright G Dan Mitchell – all rights reserved.

Shadows from moonlight passing through shipyard structures fall across walls on historic buildings at the Mare Island Naval Shipyard, Vallejo, California.

I have shot almost this precise scene previously, and under similar circumstances – on a night photography shoot with The Nocturnes, the SF Bay Area night photography group led by Tim Baskerville. Last night we were back at Mare Island Naval Shipyard (MINSY) again, this time with perhaps 40 photographers.

After meeting up with everyone and getting organized, I wandered over near the MINSY museum to shoot some brick walls, shipyard structures, and – especially – the shadows cast by the nearly full moon on the ground and the building walls. It was to be a short shoot…

I composed this one with interest in the paired shadows on the walls – one on the green section and the other higher on the brick section – and the contrast between the brick colors and the green wall at the right. I also wanted to include the metal roof beyond and the power plant smokestack in the distance – and, of course, a few star trails above – and I was (and am) intrigued by the combinations of vertical, horizontal, and diagonal forms. I made this first exposure – nearly five minutes – and then set up a second shot while waiting for the dark frame exposure to finish.

After getting the second shot I framed another that included a different section of the brick wall and shadows plus the base of a huge steel shipyard structure. With everything ready I pressed the shutter… and something didn’t sound right. The camera didn’t make an exposure. I tried again – still nothing. At this point I checked the display and found the Canon “err 99” message that can crop up from time to time. The usual solution is to remove the battery, the lens, and perhaps the CF card and then try again – it almost always works. This time it didn’t. I tried a different lens. A different battery. I finally determined that something had gone very wrong with the shutter mechanism, which simply wasn’t opening. Argghhh. So, after making two exposures I packed up, walked back to my car and did the 90 minute drive back home.

Today I put the 5D a box and shipped it off to Canon. We’ll see what happens. I’m sort of inclined to get a 5D II and keep this body for backup after it is repaired. But wouldn’t you know it… while bodies were available last week from several vendors for about $2700, they all seem to be gone now. Double argghhh…

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: mare island, naval shipyard, historic, navy, building, structure, wall, roof, window, ladder, smoke stack, chimney, boarded up, covered, drain, downspout, wire, sidewalk, shadow, full, moon, moonlight, moonshadow, star, sky, trails, night, photography, light, urban, architecture, california, usa, vallejo, green

Commentary

Resisting Temptation: Canon 5D2

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I shoot with a Canon 5D. It is a really fine camera for my purposes, and after a couple of years of fairly substantial usage it is still working quite well.

Canon recently introduced the 5D2, which appears to be a very fine upgrade to the 5D line in pretty much every important way that we could expect in a camera sold at this price point: 21 MP sensor, a high quality video mode, dust reduction features, bigger and better monitor, and so on.

I’ll almost certainly get one… in due time. I resolved to not be an early adopter of the new camera, for several reasons. Early adopters typically pay list price of more for their cameras. To the extent that some glitches are not always discovered in pre-release testing, it is not uncommon for the first production run to have a few “issues.” And, most important, my current camera works really, really well. The 5D2 could, indeed, be “better” in some ways, but not so much better that I must rush out and replace it immediately.

But now that the 5D2 seems to be reaching the retailers in larger numbers, I’m starting to see interesting deals. For example I saw a couple for $2700 that included immediate availability and free shipping. I saw another legitimate price that was even lower. There have been a couple of deals on the 5D2 bundled with the EF 24-105mm f/4 L. (Those won’t appeal to me since I already own that lens.)

Note to self: Be strong, Dan. :-)

If  you are ready to buy your 5D2, you can purchase this product from B&H Photo via this link and help support this web site – thanks!

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.

Equipment, Tests

Using Prints to Test Four Canon DSLRs

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Miles Hecker has posted interesting test results in his Canon EOS big guns image quality shootout:

As some of you know, I am a landscape photographer. I migrated to full frame digital SLR’s from medium format film. I used to shoot 6×4.5, 6×7 and 6×9 film with the end product being prints of 20″x30″ and larger. As such, I chose to investigate only one area of the 5Dmk2 in this exercise, overall image quality or IQ for short. For this test, I decided to construct a still life with a wide range of color, lots of detail and very controlled lighting to obtain what for me are valid results.The test would produce 100% crops for pixel peeping. The final analysis of IQ however would be made using real life obsevers and detailed sections of 16″x24″ and 20″x30″ photographic prints.

What I like about his test methodology is that it eliminates the very difficult issue of normalizing on-screen tests of cameras with different sensor sizes and photosite densities but doing something that I have felt would make the most sense, comparing large prints from the different test cameras. In this case he tested the Canon EOS 1DsM3, 5D2, 5D, and 50D. 

I won’t spoil the fun by telling you the results here, but let’s just say I’m not at all surprised at the results.