Archived posting to the Leica Users Group, 2006/11/01[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]
Another way to look at it is this: Same lens, same focus distance, smaller sensor means you have to enlarge more to get the same sized print. More enlargement means any focus errors will be magnified. Hence DOF must be smaller. "I don't make any calculations - am not really interested in the mathematical aspects of photography - but a few months ago I did just a few empiric tests with the same 50mm/1.2 lens wide open on a M6 and a R-D1 (with it's crop factor of 1,5). It seems to be the opposite - on the R-D1 shots there was visibly more DOF. Same lens/smaller format = MORE DOF." I think it's likely you shot the same subject from different distance, due to the crop factor. Lee Wai Leong "And if you play golf, you're my friend..." --------------------------------- The all-new Yahoo! Mail goes wherever you go - free your email address from your Internet provider.