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
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