Interesting, yes - but there is no reason to believe that the focusing aids of the new screen are dead-on either. All the best! Raimo Personal photography homepage at http://personal.inet.fi/private/raimo.korhonen -----Alkuper�inen viesti----- L�hett�j�: John A. Hufnagel <[EMAIL PROTECTED]> Vastaanottaja: [EMAIL PROTECTED] <[EMAIL PROTECTED]> P�iv�: 28. elokuuta 2001 16:53 Aihe: Re: zx-m focussing screen in zx5n <snip> >Curiously the screen is demonstrating an interesting quirk in the AF >system... >If the lens Autofocuses from infinity to target, it's dead on. If the >lens autofocus from closup to target, it undershoots focus by just a >hair. The error isn't huge and I've determined that it's somewhere >between f1.7 and f2.0 on my 50mm/f1.4 lens (this by pressing the DOF >preview button on the camera.) It doesn't happen all the time, and >seems to be a bit more frequent on targets w/o very distinct vertical >lines. Heh... With the f1.4 on there it could be me moving the camera >ever so slightly fore and aft! =) >I'll spend some time with the cam on a tripod soon and see if I can't >tie this down a bit more. > >Very interesting. <snip> - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
