I've found that it's almost impossible to see minor differences in focus o the camera's viewing screen. I shoot the images as RAW and transfer them to my computer where I can compare them at high resolution on a large screen. Of course my old eyes aren't very good, but I would think it would be difficult for anyone to see small differences on the camera. Paul On Mar 10, 2008, at 4:38 AM, Dario Bonazza wrote:
> I wrote: > >> So I'd recommend to always perform >> two focusing tests for each lens correction, one coming from a closer >> focus >> and another one from a farther one. If you get the same focus, you >> are >> doing >> well and you can apply the needed correction. > > The image comparison function of the K20D allows you to do that > very easy > and effectively; just: > 1 - Shoot the two test pictures > 2 - Press Playback button > 3 - Press Fn button > 4 - Press OK button for performing image comparison > 5 - Press OK button for selecting both images > 6 - Enlarge both images with the rear wheel and navigate them via the > four-way selector. > > Dario > > > -- > 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. -- 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.

