Paul, in cleaning the sensor, did you use sensor vibration or a Pentax gum stick?
Jack --- On Mon, 12/6/10, P N Stenquist <[email protected]> wrote: > From: P N Stenquist <[email protected]> > Subject: Re: Latest Pentax Scare: Blobs on K-5 Sensor > To: "Pentax-Discuss Mail List" <[email protected]> > Date: Monday, December 6, 2010, 1:31 PM > > On Dec 6, 2010, at 4:16 PM, Miserere wrote: > > > On 6 December 2010 16:03, paul stenquist <[email protected]> > wrote: > >> > >> On Dec 6, 2010, at 3:33 PM, Charles Robinson > wrote: > >> > >>> On Dec 6, 2010, at 14:19, Miserere wrote: > >>> > >>>> Any of you guys with a K-5 experiencing > any of this? > >>>> > >>>> http://forums.dpreview.com/forums/readflat.asp?forum=1036&thread=37092371 > >>>> > >>>> http://forums.dpreview.com/forums/readflat.asp?forum=1036&thread=37101106 > >>>> > >>>> Maybe you K-7 owners could take a look > too. No need to transfer test > >>>> images to the computer, the blobs can be > seen on the LCD. > >>>> > >>> > >>> Frankly, if the images turn out OK (besides > being all green) then there is no problem. Interesting > as a curiosity, but not in a "OMG the sky is falling" kind > of way. > >>> > >>> Seriously... why would a person even bother > looking for something like this unless it's affecting the > output? > >>> > >>> And by "affect the output" I mean: can this > really be SEEN on something other than an f/22 shot of a > blank grey surface? > >> > >> It could be seen on any number of small aperture > shots. I'm definitely going to test for it. > >> Paul > > > > Thanks for the replies so far, and please keep 'em > coming. > > > > My test unit has a string of blobs near the center > (most people seem > > to report them "near the center" for what it's worth). > They are > > noticeable at f/8 and smaller when photographing a > blank surface; I > > suspect in real photographs (with plenty of detail) > they should > > *maybe* be noticeable at f/11 and onwards. I rarely > photograph at such > > apertures, but I can imagine people shooting > landscapes would be > > annoyed to find these blobs in their blue skies. Then > again, a blob in > > a blue sky is easy to clone out. Then again, again, > we'd all prefer > > not to have to clone out blobs as part of our > postprocessing. > > > > > > I just tested my camera in the same manner as the guy > reported on dpreview. I filled my computer screen with white > and shot it with my DA* 16-50 at about 30mm, F stops were > f22, f16 and f11. Focus set to infinity. No blobs. Saw a few > specs of dust, Did the sensor clean operation and retested, > and the dust was gone. I get pure white. > Paul > > > > —M. > > > > \/\/o/\/\ --> http://WorldOfMiserere.com > > > > http://EnticingTheLight.com > > A Quest for Photographic Enlightenment > > > > -- > > 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. > -- 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.
