You're right of course. It's the difference in focal length that determines the different look. But it is an apples to oranges comparison in any case. Paul -------------- Original message ---------------------- From: Sylwester Pietrzyk <[EMAIL PROTECTED]> > On 25.10.2006, at 17:15 , [EMAIL PROTECTED] wrote: > > > I generally prefer the FA 77 images but wonder if the nicer bokeh > > is due primarily to the reduced DOF of the longer lens?. > It is not reduced DOF. DOF is the same when you have the same > magnification scale even if you compare 28 mm and 200 mm (you have to > come much closer with shorter lens to achieve the same picture in > frame as in case of long optics). It is perspective in case of photos > from DA 77 that makes out of focus elements bigger and optically more > blurred than the ones from DA 70. If you would do the same photo > maintaining magnification then 85 mm would enhance this effect and > 200 mm would do it to even greater extent. > > Cheers, > Sylwek > > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net
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