If you're noticing it, it's off by a bunch. I don't know why Pentax didn't adjust it properly. The adjustments I'm talking about here are really fine tuning. I did notice the front focus on the FA 50/1.4, which was off by -4 on the K20 scale. The other lenses seemed fine before checking. Paul On Mar 5, 2008, at 7:37 PM, David J Brooks wrote:
> Hum. > > My K10D still does what i sent it in for, my Nikons are fine, what > gives. > > Dave > > On Wed, Mar 5, 2008 at 6:58 PM, Paul Stenquist > <[EMAIL PROTECTED]> wrote: >> So far I've adjusted the FA 50/1.4, the FA 35/2 and now the DA >> 16-45/4. The 50/1.4 came in at -4. I retested to make sure. Same >> result: -4. The FA 35/2 came in at +2. Tonight I did the DA 16-45/4, >> and as I suspected, it was closer to dead on at just +1 adjustment. >> >> I simply do a series of shots of crisp typography off the tripod, >> wide open (or just slightly stopped down) at seven or more >> adjustment >> values. I use single point, center autofocus. I convert each shot to >> a full-res 16-bit file, line them up on the monitor, then pick the >> sharpest one, based on the letter where the center point autofocus >> fell. It's easy to see the sharpest at 200% of full resolution. I >> can >> check a lens in about fifteen minutes. >> >> I like this feature. But the lens-to-lens variation I'm seeing also >> explains why Pentax went to this lens-specific adjustment. I'll bet >> that in trying to address the complaints of K10D owners they >> realized >> that adjusting focal point for one lens didn't necessarily make the >> camera correct for every lens. I think we have a very good thing >> here. >> Paul >> >> -- >> 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. >> > > > > -- > Equine Photography > www.caughtinmotion.com > http://brooksinthecountry.blogspot.com/ > Ontario Canada > > -- > 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.
