NOPE, magnification in macro or actually any photo, macro or otherwise, is the ratio of the actual object size to the lens image size of that actual object, PHOTOGRAPHIC "FORMAT" IS NOT A FACTOR WHATSOEVER in the magnification expression or calculation ! ! ! jco
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Godfrey DiGiorgi Sent: Thursday, March 15, 2007 1:37 AM To: Pentax-Discuss Mail List Subject: Re: Macro Lenses Mishka, Magnification in macro work means the ratio of the size of the subject to the size of the format. 1:1 on a Pentax DSLR images a 16x24mm area. G On Mar 14, 2007, at 7:39 PM, Mishka wrote: > magnification on a digital sensor is a moot point anyway. > how do you measure it? > suppose you have 24x36mm (FF) sensors: one is 2x2 pixels > and one is 20MP. does it make any sense to compare 1:1 mag images made > on them? > > best, > mishka > > On 3/14/07, John Whittingham <[EMAIL PROTECTED]> wrote: >> >> But you still have to be at the same distance to achieve 1:1 or >> 1:2 as the >> case may be, fact! Again depends on the subject matter and whether >> you >> require a particular ratio for scientific or technical reasons. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
