absolutely correct. mishka
On 3/15/07, J. C. O'Connell <[EMAIL PROTECTED]> wrote: > 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 > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
