Last week (I think) I talked about missing my Nikon F4. What that "longing" (or whatever you want to call it) actually is this: full frame. Don't get me wrong, I love Nikon D-SLRs, have been since 2000 in Kosovo. I picked up a D1 and had the camera set up with in two hours without using the manual.
A few years later I'm a civilian professional here in Iraq. I'm using two Nikon D-SLRS. A lot of other professionals are using Canon. Two others here I've met, Franco and Scott, are using Nikon. So maybe there's something to using Nikon.
But... I miss full frame. I shot with an F4 here in 2004. I'd switch lenses between my D1X and F4. I have Kodakhrome at home of some shots with the 17-35 on the F4. The 17 at FF is amazing!
Canon D-SLRS, the high-value models anyway, have FF. The new 5D is a sweet little camera. It has FF. Even the ISO is great at high settings.
Then I found out a company makes adaptor rings for Leica R-lenses to Canon SLRs, including their D-SLRs. So... I've pretty much made up my mind.
Until Nikon releases a FF D-SLR and that company makes the adaptor rings to fit, I will be switiching from Nikon to Canon so I can use Leica R-lenses. Hopefully, Nikon makes a FF camera.