For the last couple of years I have used a Canon EOS-1Ds Mark II digital SLR, a 16.7 megapixel camera that produces stunning high resolution images.  Several local photographers admit a certain amount of megapixel envy.

Now Canon has upped the ante, announcing the EOS-1Ds Mark III, a 21.03 megapixel monster. When it starts shipping later this year, I’m faced with the choice of parting with another $7500 for a camera body or living with "last year’s" technology.

I’ve always been a sucker for the latest and greatest in camera gear. Before I made the switch from Nikon to Canon in 2004 I owned every Nikon SLR from the original "F" to the F5 and then the D1, D1H, D1X and D2H.  I replaced the Nikon gear in December 2004 with three Canon digital SLR bodies and a number of lenses.

But this time I may wait. At 16.7 megapixels, the 1Ds Mark II already has higher resolution and better color depth than 35mm film and one has to wonder if the additional 4.3 megapixels will deliver that much more.  Plus the new camera is based in part on a new autofocusing system that has caused problems with some photographers.

This time around the latest and greatest may have to wait. I’m comfortable with what I have.