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01-04-2011, 03:33 PM   #1
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K-5 at ISO 6400 AND 12,800 ... images

I uploaded moderately large high ISO photos taken while testing the K-5for

As I said in my review, no other DSLR that I have tested recently produces better high ISO quality (OK, the full-frame Canon and Nikon DSLRs may but I tested those LONG ago and they compete in a different arena)

They are in this gallery:

Photos Posted By PeterKBurian - Pentax User Photo Gallery

01-07-2011, 11:54 AM   #2
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Darn you, that really makes the K-5 tempting.
01-08-2011, 07:24 AM   #3
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Well, depends on the camera you now own. If a K-7, I would not be super tempted to upgrade to the K-5. But if it's an older camera, then sure ... it would be very tempting.
01-08-2011, 07:33 AM   #4
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ISO 6400 photo

I noticed that Shang commented on your ISO 6400 photo about heavy PF.
I then posted this comment: (since I want to follow up for an answer I'm reposting here)

Is that actually Purple Fringing or is that legitimately caused by the glass or other light source?
I've never seen PF that cast color away from the extreme contrast source. If the PF was just on the glass at the mullions OK, but what is causing the purple color cast in the low contrast ceiling or on the side walls?

P.S. Very impressive for ISO 6400!

01-09-2011, 06:52 AM   #5
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Honestly, I was just shooting and examing images for digital noise .... not worrying about things like that because all I was interested in was the high ISO quality.

But purple fringing/chromatic aberration is caused by the lens, not the camera. I was shooting RAW+JPEG so I could fix it in Adobe Camera Raw probably. P

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