Don't forget that a 50mm f/2.5 macro on a will act like a 80mm f/2.5 macro because of the 1.6 cropping factor. A 100m would act like a... (you got the idea).
Personally, I don't have one, but I'd go for the 1.4! Reviews are superb and there is a reason why Canon uses it to benchmark most cameras. Autofocus will definitely benefit from the extra light and the USM drive :) Besides, with the relative 80mm the lens would produce, you'll have quite a good minimum distance of 45cm/1.5ft. For comparison, the 50mm Macro macro goes down to 23cm/0.8ft. If you need to go closer occasionally, get an extension tube. This way you can use all lenses for macro work! Cheers, Stefan Stefan: You are absolutely right, being a film shooter I completely forgot about the 1.6 cropping factor for DSLRs regards * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
