I'm not 100 % sure but as far as I know it said that the IS is the hybred version! So maybe they consider it a macro lens to help justify the big price?
Yes, i agree completely! I do alot of wildlife photography and am lucky enough to own a EF500F4LIS and i love it! But i would really like the new 600mm but i would have to sell my car to get it! lol!
That's a good point, i just think there are other older lens that can use an upgrade like my EF100-400LIS or my EF3004LIS .I would love to see these guys with newer IS and new coatings!
