1:1 would be achieved at the same focusing distance, it's just that a smaller section of the subject would be recorded.

Don Sanderson wrote:

On the *ist D wouldn't a 50mm 1:1 Macro lens be roughly equivilent to a 75mm
1.5:1 on a 35mm?
Or, put another way: To achieve 1:1 couldn't you be 1.5x farther away?
I don't mean to, and hope I won't, start the equiv./crop factor/mag.
factor/DOF wars again!
It just seems to me that a 90 or 100 macro would actually be rather long on
the D.
Not having very steady hands I wonder if I could hand hold a longer lens
properly?

Don (My Mom said asking stupid questions is how I learn!) 8-)






--
I can understand why mankind hasn't given up war. During a war you get to drive tanks through the sides of buildings and shoot foreigners - two things that are usually frowned on during peacetime.
--P.J. O'Rourke





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