Search results for 'sensor cleaning' - page 328
K5 Poll
I managed to give mine a quick test today and suspect I have a black spot that has not shifted with a sensor clean, unfortunately the clean wasn't as successful as I'd have liked and it was my last swab so I couldn't do it again, I realy must invest in one of those Polar Moths or whatever:lol: Th...
Posted by fatspider on 06/12/2010 - 19:11
K5 Poll
Got a day off so decided to do another test to make sure it wasnt a mark on the wall I was picking up. Very strange looking problem. by , on Flickr
Posted by Mike-P on 07/12/2010 - 09:39
K5 Poll
Looks like a new life form developing on the sensor.
Posted by DrOrloff on 07/12/2010 - 09:54
K5 Poll
Been reading all these threads as I was seriously thinking about getting back to Pentax with a K5, might leave it for a little while though That looks suspiciously like some sort of oil, didn't Nikon users have trouble with that a little while back? Maybe over zealous lubrication of the mechani...
Posted by leytono on 07/12/2010 - 10:16
K5 Poll
On the other forum there has been confirmation from some owners that cleaning sensors couldn't remove these stains and technical analysis suggests that particles are embedded within the layers that make up the sensor assembly. Spotmatic?
Posted by DrOrloff on 07/12/2010 - 11:07
K5 Poll
Maybe Chris at SRS can try this out for me... Take a new k5 that does not have this problem from the package.... then fire off a lot of fast shots in continuous shooting... then check it again for spots. Oil flows best when warm, so do it in a warm environment please. looking at those photos, man...
Posted by Don on 08/12/2010 - 15:59
K5 Poll
has anybody tried cleaning it off with alcohol? I don't fancy using cleaning swabs on a 1 week old camera.
Posted by mille19 on 08/12/2010 - 16:05
K5 Poll
has anybody tried cleaning it off with alcohol? This has been thoroughly explained over at PF. There is photographic evidence, as well as a mathematical proof, that the marks are NOT on the surface of the AA filter. They are sandwiched between the AA filter and the sensor.
Posted by thoughton on 08/12/2010 - 16:06
K5 Poll
From posts on the other forum the consensus is that the spots are on the underside of the AA filter or the top surface of the sensor (favourite appears to be the underside AA filter). Either way its unlikely that its being deposited on the sensor by the shutter, mirror or even the SR mechanism. ...
Posted by Dave_Evanson on 08/12/2010 - 16:13
K5 Poll
I don't think that's right. If you go back and look at the macro photos that DCUK took of the sensor, it clearly shows the offending blobs are actually particles of some sort. The ring is just the shadow.
Posted by thoughton on 08/12/2010 - 16:18
K5 Poll
I don't think that's right. If you go back and look at the macro photos that DCUK took of the sensor, it clearly shows the offending blobs are actually particles of some sort. The ring is just the shadow. particles of dust clinging to oil spots?
Posted by Don on 08/12/2010 - 16:19
K5 Poll
Don, there is apparently a 0.44mm gap between the AA filter and the sensor. You need to read :) As well as showing an image of the gap, it also explains how a microscopic particle can leave a ring-shaped shadow (short answer: diffraction)
Posted by thoughton on 08/12/2010 - 16:32
K5 Poll
Can I change my earlier "No" vote to a "Yes" - I've got a vertical patch of "bubbles" near the cente of the sensor :cry: S/No 3821XXX Vic.
Posted by xbow on 09/12/2010 - 11:53
K5 Poll
Can I change my earlier "No" vote to a "Yes" - I've got a vertical patch of "bubbles" near the cente of the sensor :cry: S/No 3821XXX Vic. Do you think they have appeared due to using the camera?
Posted by bforbes on 09/12/2010 - 13:04
K5 Poll
I was also wrong to say that mine is clean. Having looked at the RAW file at 100% in Bridge ACR it has three problem areas. I have put the file on my flickr site under SENSOR, without giving an explanation as I do not want to damage pentax in any way. TBH, the problem in my case is pretty small...
Posted by Monobod on 09/12/2010 - 15:15
K5 Poll
I have just checked my K-7 under the same conditions as the K-5. On my Flickr site are two images. SENSOR 1 is the K-5 straight out of the box. SENSOR 2 is the K-7, now about 11 months old. Both do not report any dust in the DUST ALERT option. The K-7 has more blobs than the K-5 and it ha...
Posted by Monobod on 10/12/2010 - 00:23
K5 Poll
I viewed the poll initially saying I didn't have a K5. Well now I do but can't vote! For the record, my sensor is OK. Having lots of fun with this camera and just used video on Grandchild at Kindy. Easy to use! bb2
Posted by beachboy2 on 10/12/2010 - 14:23
K5 Poll
Well, having voted 'no' to marks on my sensor, and having the shots to prove it, this morning I took some ice photos, and was shocked to see significant marks have now appeared. :-( So in my case, no amount of QC of cameras coming off the production line could have spotted my problem, and perhaps...
Posted by Daniel Bridge on 13/12/2010 - 13:29
