Igor, I've no experience with the D-FA 100/2.8 Macro, but the A100/2.8 Macro is a favorite of mine. The 'flat field' is very handy for copy work and the Marco is great. I wasn't happy with my results on landscapes and thought other lenses did better. I didn't use it for portraits as I prefered the M 85mm f2 as smaller/lighter and easier to focus. Your milage may vary. Regards, Bob S.
On 5/3/07, Igor Roshchin <[EMAIL PROTECTED]> wrote: > > Hello everybody! > > I think I understand what "flat field" lens means. > (e.g. per http://www.wisner.com/myth.htm ) > My question: what is the _practical_ implication of the lens with a > very flat field? > > More specifically, - if I were to use the D-FA 100/2.8 Macro as a > portrait lens - what would be the drawbacks/side-effects/...? > Both the theoretical description/explanation and personal experience > with this lens in this particular regard are appreciated. > > Thank you, > > Igor > > > -- > 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

