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Old Oct 26, 2010, 12:28 AM   #1
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Default Pentax K5 Iso test

Just got my K5 few days ago

All resize to 1024x678:
Upto ISO 1600, I can say, almost noiseless.
Upto ISO 6400, still not too bad.
ISO 12800, for 4R print shd be fine.
Above ISO 12800, I guess use for emergency only

ISO 80


ISO 100


ISO 200


ISO 400


ISO 800


ISO 1600


ISO 3200


ISO 6400
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Old Oct 26, 2010, 12:29 AM   #2
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ISO 10000


ISO 12800


ISO 20000


ISO 25600


ISO 32000


ISO 40000


ISO 51200


ISO 51200 with Noise removal
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Old Oct 26, 2010, 12:30 AM   #3
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Below crop 100% in the centre of the image:

ISO 80


ISO 100


ISO 200


ISO 400


ISO 800


ISO 1600


ISO 3200


ISO 6400
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Old Oct 26, 2010, 12:31 AM   #4
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Default *image intensive*

ISO 10000


ISO 12800


ISO 20000


ISO 25600


ISO 32000


ISO 40000


ISO 51200


ISO 51200 with Noise removal
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Old Oct 26, 2010, 2:30 AM   #5
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I agree that up to 1600 is really impressive. I could see using 3200 and maybe even 6400 but beyond that I'm not sure it'd be worth it. Some of those really high ISO settings just look like marketing to me. You couldn't really use them and get a picture you'd ever want to look at. Thanks for taking the time to do this.

John
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Old Oct 26, 2010, 2:43 AM   #6
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Thanks for all the work in putting this info, examples and all together. Hope to see and read more of how you are enjoying your camarea! Again, thaks for all this. Ned
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Old Oct 26, 2010, 3:27 AM   #7
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Thanks for viewing
I'm still very new, as my first dSLR, and still learning how to use the cam
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Old Oct 26, 2010, 4:44 AM   #8
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Hi Armadillo,

Nice test. You have much more patience than I. . .

What were the in-camera NR settings?

The very low levels of chroma noise are what impresses me the most about this body. When I get mine, I'll be checking it to see at what level detail suffers too much for my various purposes, but I think my thresholds for acceptability might be at a higher sensitivity than yours.

I will definitely be using the upper reaches of the ISO range for snapshots and for situations where getting the shot is more important than a pristine large print. I think that the coolest thing about the Sony sensor's ultra high ISO is that the images don't seem to get ugly -- there's less detail and they do get a bit blotchy, but it's nothing like the very invasive noise that has made high ISO shooting so impractical with previous sensors.

I'm excited. . .but determined to be patient. . .

Scott
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Old Oct 26, 2010, 5:29 AM   #9
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NR setting set it to auto, I think when I hv time, will try again with NR-off.
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Old Oct 26, 2010, 7:46 AM   #10
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Thanks for the great test.
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