First of all, nikon doesn't because:
A) until this past year, Full Frame was insanely expensive- prior to the 5D, nothing under $5000 was full frame.
B) Full Frame without solving some of the problems that Canon has ignored in its past 3 cameras does not satisfy Nikon's stringent quality requirements.
Full Frame is ONLY an issue at this point if you feel the strong desire to upgrade to a $3000+ body. Even so, there are two previous Full Frame 14MP Nikon-mount DSLRs from Kodak. Nikon is also rumored to have at least two prototypes floating around for their Full Frame next generation camera.
Also, that AF system talk is patently false. Nikons are great in low light, and several have a reputation for being better in low light focusing than Canon.
Hi,
What problems have Canon been ignoring? I certainly haven't heard of any,
Which Nikon's are faster at focusing in low light?
Surely you must admit that having the focusing motor in the body is a bad idea. Canon has the focus motors in their lenses so each lens has the optimum torque for rapid focusing (in any light)
The proof of the pudding is in the eating. Go to any major event and look around at what the pro's are using. I think you will find it difficult to play "spot the Nikon"
Nikon very well MAY have two prototypes floating around, but this doesn't do much for their sales.
Dave (retired pro photographer with 30 years experience)