Why is Canon the format of choice for many media publications (newspapers, magazines)? Is it because they have a wider variety of lenses? Is it because they are more affordable? Is it because they were - until more recently - the front-runner of more advanced technology? Does Canon have "contracts" with publications? If so, how does that work? I'd imagine most publications would require you shoot the same format as whatever back-ups they have on hand due to consistent results/post-processing needs, etc.?
I've always been curious about this. Don't know if the climate may all be changing with this now that Nikon has introduced the CMOS sensor and full frame (not that I'd imagine this is more desireable for photojournalism, but I wouldn't know).
As a side thought - is Nikon more desireable for studio work? Or is it all just one big toss up depending on what the owners want and what's most affordable/most desireable at the time?
Any thoughts/input?

