Been 2 weeks now since I got a used 1D Mark III (40k actuations ~$2000).
I have a Canon 5D Mark II (and have owned a 5Dc and many crop bodies in the past). Initially I was very skeptical about the 1D MK III's IQ. I went through a long debate on whether to pick up a used 1D MK III or a new 7D and finally made up my mind after seeing images on this forum and renting out a 7D. Don't get me wrong, the 7D seems to be a very capable camera. But the soft RAWs kind of put me off.
What I love about the 1D MK III:
- AF. Coming from the 5D Mark II, the difference is night and day. My priorities are now shifting towards bird photography, although landscape, people and macro is what I love.
- The variety of Custom Functions. I've gone over the manual a couple of times already.
- The ergonomics. It's a 1D and rightly so!
- High-speed drive (10 fps) and the bragging rights it gives you.
- Clean shots even at ISO 1000. Haven't tried going beyond that.
- Dual card slots for piece of mind.
- Weather sealing. Already used it in light rain.
What I don't like:
- 10 mp. The 5D MK II's 21 mp gives you more possibilities.
- Rear LCD. Can't believe that a big corporation like Canon can release a top-of the line product with such lousy specs.
- Paint wear-off on my 1D body. Looks ugly. Again, I'd expect Canon to release a product that is more resistant to abuse.
- Cost. I think the 7D would retain better value in the long run.
Below are few photos taken with the 1D MK III. The first one was shot with the 100mmL IS macro and the rest with a 70-200 f/2.8L IS. All shots from in and around Bangalore.