Advantages – disadvantages of the Canon EOS 7D
It took a long time, but I finally decided to acquire a Canon 7D. Now that I’ve had a chance to work with it, I admit that this camera, with it’s smaller sensor, has advantages the stack up well against the disadvantages. Read on, I’ll explain.
1. When used with EF lenses, you’ll never have problems with un-sharp corners. It simply uses a smaller middle part of the image circle.
2. With a smaller sensor, you can be farther from your subject to get the same image. That means a smaller degree of enlargement, so you get more depth of field with the same aperture. Or, you can get the same depth of field with a larger aperture and use a faster shutter speed. (see October 2012)
3. Because you are at a greater distance from your subject, you have a better chance of getting the shot with with shy butterflies of dragon flies before they fly away.
4. The usage of the EOS 7D is almost identical to that of the EOS 5D MkII, and that has an advantage if you must work quickly, or need certain special functions. This is great if you use both cameras, the same applies to point 5 below.
5. The EOS 7D uses the same batteries and CF memory cards as the EOS 5D MkII.
6. The EOS 7D is considerably less expensive than the EOS 5D MkII. This is a good argument when trying to decide which camera to purchase.
1. One big disadvantage is that the smaller sensor of the EOS 7D has considerably more noise. This is especially noticeable at higher ISO values. At ISO 160 or 320, it might be measurable, but it’s barely visible, so not a problem. But I would definitely not use the EOS 7D at ISO values higher than 320.
But all in all, we have six advantages against one disadvantage. The coming season of shooting with both the 7D and 5D MkII will inform my opinion on these fine cameras.
Oh, I’ve forgotten one disadvantage of the EOS 7D. If you just want bragging rights, it would be much better to walk around with the 5D MkII, and even better, the newest and most expensive 5D MkIII. Is this important for you?
Two unassuming images of forget-me-nots, both taken at the same distance at aperture f/4.5, ISO 320. The top photo was taken with the Canon EOS 5D MkII, the bottom one with the EOS 7D.