I have posted a revised version of this message above.
Tag Archives: lens
Resisting Temptation: Canon 5D2
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!
An Example of Corner Performance on the Canon EF 24-105mm f/4 L IS
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.
Lowepro Nova 200 AW
Earlier this year I acquired a Lowerpro Nova 200 AW camera bag. I have been meaning to write my review, but I’ve managed to delay. I think this is partly a result of the nature of this bag. No, there is nothing wrong with it – in fact, I like it a lot. It is just there is nothing flashy about it either – instead it is just a very competent and useful piece of basic equipment. Continue reading Lowepro Nova 200 AW