It's probably just a dust spot that's clinging to the sensor. It may be almost too small to see. The Pentax sticky pad thingy can probably remove it. The tech probably missed it. Paul On Jun 11, 2010, at 12:01 AM, Bob Sullivan wrote:
> Hello team, > I need your collective wisdom on a K-7 problem. > I noticed a spot (dust?) on my pictures at Grandfather Mtn.. > I had the camera tech clean the sensor at GFM. > > On the way thru the Smokies, I shot some landscapes and IT'S BACK! > (still there?) > I've got a spot just below 1/2 way down and a bit to the left. > I cannot see anything on the sensor's surface. > Furthermore, the spot disappears when I open the lens to f2.8 or f4.0. > Spot happens with multiple lenses at f16 or f22. > It's a small spot, but I don't understand the mechanics. > Is my sensor broken? > > Here's a sample from Cades Cove with the DA60-250/4. > Click on the magnifying glass in the upper right. > You can see a black spot just below the ridge line. > http://picasaweb.google.com/rf.sullivan/NewK7Samples#5481359232070699890 > > Regards, Bob S. > > -- > 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.
