----- Original Message ----- From: "Paul Stenquist" <[EMAIL PROTECTED]> To: "Pentax-Discuss Mail List" <[email protected]> Sent: Tuesday, March 04, 2008 6:10 AM Subject: Re: K20D focus adjustment
>I think most lenses will benefit from some fine tuning of the focal > point. Although it remains to be seen how accurate the DA lenses > might be. The kind of adjustments I'm making are quite fine, and the > difference isn't critical for most subjects. About the only place > where it comes into play is with wide-open portraits, where eye focus > is critical. Of course, those should be manual focused anyway in the > studio. But for situations like wedding photography or even my coffee > shop portraits, pinpoint autofocus accuracy is an advantage. "A" > lenses aren't autofocus, of course, so they just sit there silently > without complaint:-). Manual focus lenses should be more dependant on how accurately the screen is placed, although I do find myself, from time to time, using the AF confirmation with manual focus lenses, in which case, I expect focus accuracy may benefit from being tuned in with them as well. William Robb -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
