Canon Being ahead or Nikon behind has much to do with which company
comes out with the best equipment first. Look at the Canon 1D which
came out 2 years ago at 8fps with 4MP, it is only until recently
that Nikon came out with its D2H, too little too late; Then last
year Canon came out with its 11MP EOS-1Ds- Nikon never even
attempted to compete with this one. The better wedding and product
photographers use the 1Ds period - and its killing the digital back
market on hasselblad and other medium format cameras as a result.
Then Canon in March, 2004 has hit the market with its 1Dmk2 with
8.5fps at 8.2MP, what pro in their right mind would buy the 2DH at
4MP, which is why more and more pros are tired of waiting for Nikon
to catch up, and are switching over, including me. Its also so easy
to dump the NIKON lenses on ebay. The pros cannot be behind in
technology - the competition is too great.
Behind the scene, the truth Nikon is at the mercy of 3rd parties
for developing their CCD imagers, which is a huge disadvantage for
NIKON, costs more time and money to get to market. Since Canon
makes every major component in its cameras including the Image
Processor and the Digital Imager they will likely remain in the
technology driver's seat for some time to come.
NOW look at Phil Askey's test images (link below) of Canon's new
EOS-20D, 5 fps, 8.2MP, 23 frame buffer, with unbelievable low noise
at ISO of 800 and 1600, 1000 shot battery capacity, true B&W mode
with color filters, two color spaces, sRGB and Adobe RGB.... the
list goes on and on. Here's another point, every EOS lens in the
Canon line-up is fully functional with all EOS cameras built since
1980, except for 3 recently produced for the 300D. Canon will
eventually be more universally FullFrame and the need for these
back focus lenses will be eliminated.
I personaly had NIKON and Hasselblad systems with all the pieces
for 30 years. And since 1997, I am universally CANON, and sold
everything else on ebay. As a user of these three systems dating
back since 1975, I must admit Canon is the leader - and their "L"
lenses and I own a bunch of them from the long 400mm f2.8 IS "L",
to the short, 14mm wide angle. Regretfully Nikon a distant 3rd
place.
http://www.dpreview.com/articles/canoneos20d/page17.asp