Reading the promo literature on the K20D, I noticed a new feature. The camera has the ability to store adjustments for backfocus (or forward) for 20 lenses. The claim is that all the DA lenses are fine, but others may need adjusting.
Any ideas on why this might be? Do some lenses transmit more of the right wavelength light for focusing? I am puzzled as to the physics/mechanics of this. Regards, Bob S. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
