Summary: This is an old FF SLR (2005) but still takes wonderful images with great details and fine grain at higher ISOs even 3200 (compared to current APS-C SLR). I love the images this camera produced... Things you should've noticed before buying this camera: the back LCD is low res (compared to current LCD display), and the user interface is dated. There is no AF microadjustment feature and the battery life is short.
Pros: Image quality (it's FULLL FRME), substantial hand grip
Cons: Poor LCD, body paint (getting shiny over time), heavy, manual ISO setting
Excerpt: The Canon EOS 5D is my first DSLR ever and it is great. It has met with all my expectations of a good auto camera and then some. Gripes are little but I wish the shutter lag was a bit shorter. I also wish the multi-direction control on the back could be a tad closer to the thumb rest and easier to use. In terms of image quality I have no complaints. The images produced by this camera are sharp with film like texture and resolution.
Summary: This , put quite simply is an awesome camera. Now available secondhand for about the price of an entry level APS-C Canon or Nikon with bundled kit lens in the UK , given the massive price hikes, this is fantastic value. If you are not interested in gimmicks like face recognition, flip out screens, live view, video and so on, just wanting a quality still camera, look no further.
Summary: The Canon 5D is still one of the best cameras available. The full frame sensor captures very high quality images. And a 12 mega pixel image is more than enough unless you are making wall size murals. Now that the 5D Mk II has been announced the price on the 5D is continuing to fall and it will be an excellent value for someone stepping up to a full frame camera.
Pros: Comfortable Controls, Image quality, Strong Construction
Summary: This is an excellent example of the prosumer Canon DSLR except that it has one problem in common with just about all of the CMOS-sensored DSLR from Canon, in that it produces a lot of streak-noise in continuous-drive at ISo1600 and 3200 that shows up at about -3eV, which really ruins the shots taken in low light. It's also somewhat lacking in shadow resolution compared to the d300.
Pros: moderately-good overall, good value in a fullframe
Summary: The 5D has been on the market for a long time, but it still compares well to the competition. Full frame means lenses don't need quite the resolving power in the center, but they have to perform well at the edges and corners. It also means lenses work as they do with film bodies. If you like to use primes, this is a good thing. If you prefer to use a single general-purpose zoom, it can also be a bad thing. Depth of field is reduced compared to crop bodies.
Pros: Excellent image quality
Cons: Large and heavy, no sensor cleaning features