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03-01-2011, 11:40 PM   #1
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New K-5, Hot Pixels Acceptable?

Well, I just got my new K-5 today and think I'm in love. While I was in the process of checking out the camera, I did a lens-cap hot-pixel test (ISO 1600 4 seconds), and it did produce more than several hot pixels (at ISO 80 it only had 3 or 4). Can someone else take a look and see if they think this is fine. I rather suspect it is (especially with pixel mapping), but I figure its best to ask now while it's in the return window. I've not done the test before so I'm not sure how to take the resulting hot-pixels.

Here's the link to the full size photo:
Download IMGP0025.JPG from - send big files the easy way

03-01-2011, 11:46 PM   #2
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Don't have the K-5 but of the 2 Pentax DSLRs I have (DS & K-M), yours doesn't look bad. Just map them out. Personally I only shoot RAW and don't bother checking because the RAW converter will remove them automatically. Years ago I had the CCD replaced by Pentax Japan for the same reason only came back with more hot pixels and worse banding. Just not worth the trouble.
03-01-2011, 11:46 PM   #3
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I buried more than 20 with my first pixel mapping, some were very large and quite visible. Many might have returned their camera but from what I could find this was an acceptable number for this pixel count??
03-02-2011, 01:39 AM   #4
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Luulen että tässä mennään aina höperömmille alueille.

03-02-2011, 05:12 AM   #5
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I couldn't possibly check mine for hot pixels. The very first thing I did with my K5 was to map them out.
03-02-2011, 07:06 AM   #6
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There are always hot and dead pixels... map 'em out and/or shoot RAW as all raw-converters do take care of it...
03-02-2011, 08:43 AM   #7

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out of 16 million and 200 thousand pixels, how many is acceptable? 20 would be fine with pixel mapping.
03-02-2011, 09:41 AM   #8
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Original Poster
Glad to hear it. Thanks all! I'd never done one of these tests before, so I had no results to compare it to.... It's just the usual new-camera jitters. When I took my first photo with the K-5 (had it away from my eye) I actually thought it was broken--the mirror/shutter sound was so quiet (compared to my K100D).

03-02-2011, 02:07 PM - 1 Like   #9
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more will appear and some will disappear over time, this is simply the nature of digital camera sensors in general. luckily pentax camers let users map them out. some camera manufacturers do not offer such option.
03-03-2011, 05:00 PM   #10
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QuoteOriginally posted by Rin Quote
this is simply the nature of digital camera sensors in general
+1 couldnt have said it better myself

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