NOT GOOD ONES. And I specifically mentioned GOOD ONES that DONT focus shift while zooming.
Secondly, the point of my zoom reference is the simple fact that longer lenses are easier to focus than wider ones at the same f-stop. Anyone who has ever used a zoom knows this to be true, just because some crappy ones shift focus doesnt change that simple fact. jco -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Adam Maas Sent: Friday, November 10, 2006 7:12 PM To: Pentax-Discuss Mail List Subject: Re: Using a Super Tak w/ istDS- A challange to the list? Paul Stenquist wrote: > On Nov 10, 2006, at 4:44 PM, J. C. O'Connell wrote: >> the camera makers >> themselves even tell you to focus at longest >> setting and then zoom to length you want >> because its easier to focus accurately at >> longer lengths > > This is not a good way to work. Most lenses aren't precise enough to > hold accurate focus while zooming. > And many shift focus when zooming. -Adam -- 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
