My first Pentax (K100D) had dust under the filter. Without realising this; I had damaged the surface while trying to clean it. Pentax service (Germany) labelled the problem as "user error" even though the dust was there from the beginning...
B. --------------------------------------------------------------------- http://patoloji.gen.tr http://celasun.wordpress.com/ http://celasun.carbonmade.com/ http://www.pathtophotography.com/ http://www.flickr.com/photos/bc_the_path/ http://photo.net/photodb/user?user_id=2226822 http://www.pentaxphotogallery.com/artists/bulentcelasun 2013/7/23 Zos Xavius <[email protected]>: > IMO if wet cleaning isn't removing it after multiple passes its prob > under the filter. Check it out with a magnifying glass. > > On Tue, Jul 23, 2013 at 1:05 PM, John <[email protected]> wrote: >> It doesn't look like a damaged sensor to me (compared to what the >> damaged spot on my K20D looks like in my images). It might be a dust >> particle trapped under the anti-aliasing filter (the k5 still had the >> anti-aliasing filter?), or it might just be a particularly stubborn >> piece of dirt. >> >> Therefor C) Before I sent it off to CRIS, I'd try to find a camera >> cleaning guy like the one who comes to GFM Nature Photography. If it's >> just stubborn dirt that might turn out to be easily (and cheaply) fixed. >> >> OTOH, if having it cleaned professionally doesn't fix it, he still might >> be able to tell you exactly what it is (i.e dust under the AA filter or >> flaw in the sensor). >> >> >> On 7/23/2013 11:59 AM, John Celio wrote: >>> >>> If you take a look at the four pictures in the following gallery, you >>> will see two little blobs on the right side that become clearer as the >>> aperture is stopped down: >>> >>> http://imgur.com/a/IG40x >>> (to see an image at full resolution, hover your mouse over the image, >>> click the gear icon that appears and select "view full resolution.") >>> >>> The blob closer to the center is probably regular old dust that would >>> go away with a puff from a blower ball. The other blob (the darker one >>> closer to the right side), however, is a problem. It won't go away >>> with air or Sensor Swabs. I even took a risk and tried a compressed >>> air blast once. No dice. >>> >>> I'm worried it may be some sort of actual damage to the sensor, even >>> though I can't really think of anything that could have caused that. >>> >>> My question is, which of the following would you do: >>> >>> A) Send it to Pentax/CRIS and see what they say. I'm worried this will >>> be very expensive (as in, replace-the-sensor expensive), and I don't >>> have the money to spend on repairs right now. >>> B) Deal with it in Photoshop until a replacement for the K-5 comes >>> out, and then start saving to get that. (I'm nearly finished paying >>> off the last of my recession-incurred debts, so saving will be much >>> easier starting this fall) >>> >>> Other ideas would be welcome, too. >>> >>> Thanks, >>> John >>> >> >> -- >> 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.
