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01-17-2012, 03:45 PM   #1
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The K-5: Natural light and ISO 4000

I just took this shot today, indoors with natural light through a nearby window. It's a house guest making friends with our pit bull terrier. I used a Pentax 50mm f/1.4 prime, set on aperture priority f/2.8; it went to 1/200 second and worked out to ISO 4000. I was really impressed with the quality of the pic at this high ISO. I bought the K-5 about a year ago specifically to take advantage of its high ISO capability, among other things. The picture was reduced with Photoshop elements 7, but is otherwise untouched. Whatcha think?

John



01-17-2012, 03:48 PM   #2
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Looks great!
01-17-2012, 03:49 PM   #3
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Websized as it is now, I can't even see noise. Some luminance noise is shown in the OOF areas, but that's really hard to notice (unlike chromatic noise).

Looks good
01-17-2012, 04:35 PM   #4
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Yes, this is the K9. I see.

01-17-2012, 05:16 PM   #5
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Wow, I want my K-5 to arrive NOW! It looks like K-7 at ISO400 to maybe ISO800.
01-19-2012, 05:19 AM   #6
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Yes it's one of the best things about this camera, I think nothing now of shooting at ISO 1000 to 4000 when needed, whereas before, I never went over ISO 800 on my K100DS. It's a whole new World!
01-20-2012, 10:46 PM   #7
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Ditto with the other comments; iso 4k-5k looks like iso 1250 from earlier sensors. Great image, well shot - you scored, and the camera gets credit for the assist
01-20-2012, 11:18 PM   #8
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Love the picture, and love that the camera can provide it.

01-21-2012, 01:00 PM   #9
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From my brief experience 6400 seems to the sweet spot -- if properly exposed. (Keep in mind that I generally have a documentary reference) Almost at good as 800 on my 200d.
I do start picking up noise at 12,800, but considering it can make the difference between getting the shot or not, it's a reasonable trade-off.
25,600 -- sand paintings under most circumstances.
51,200 -- just kick up the contrast, desaturate and call it "Tri-X boiled in Rodinol."
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