David I appologize for high jaking your thread, but it is on the topic...
Greg, rev kinda sparked my interest into photography, but before jumping into a camera purchase I like to research things beyond obsesive.
From another site I was reading the below about the Canon motors being worse than the Nikons and the ration on the lower models Canon's being 1:2 vs 1:1 on the Nikons. So just for my sake can you explain why you consider the Canon better than the Nikon? I'm just curious especially since the below review was by a Canon user and he liked the Nikon Macro lenses.
By no means am I questioning your statements, but rather just trying to figure these things out.
Below is the quote I'm refering too. Thanks in advance for any further help.
"In my humble opinion, the best macro lenses are the latest autofocus mount models made by Nikon (my primary 35mm system is Canon EOS, by the way). Nikon makes 60mm, 105mm and 200mm focal lengths. Each lens will focus continuously from infinity to 1:1. You can shoot the moon and capture the bear claw without stopping to change lenses or screw in filters. How do these lenses work? Do they just have a much longer helical than the 50mm normal lens? Yes and no. "
"What about other companies? Canon makes 50, 100, and 180mm macro lenses. All three incorporate floating elements. The 50 is cheap but it only goes to 1:2 without a "life size converter" (sort of like a telextender) that you stick between the lens and the camera. The 50 is also annoying because it has the ancient non-USM Canon motor. So it can't do simultaneous AF and MF like the ring-USM lenses. The 100 goes to 1:1 but also has the old-style motor. The 180/3.5 is a new design with three low dispersion elements, a tripod mount, and USM for full-time manual focus. It is also compatible with the Canon telextenders"
Thanks again
Brandon