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Monday, October 19, 2009

K-x and K-7 ISO Noise/Detail Comparisons (All Speeds)

This is the K-x test, full size original test images can be downloaded:-

http://www.focus-numerique.com/test-103/pentax-k-x-test-bruit-electronique-12.html
(or view in English by Google Translate here)


(ISO 200 to 12800)

And, we can see also the K-7 test. Here it is:-

http://www.focus-numerique.com/test-91/pentax-k-7-test-bruit-electronique-12.html
(or view in English by Google Translate here)


(ISO 100 to 6400)

Okay, I won't comment further this time. I blog, you measurebate and decide!

Comments (8)

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Why is the second image of K7 so blurred? SR again??
3 replies · active 794 weeks ago
It has been explained in the review. It is told that the AF in LiveView produced the error. See the Google translated page.
Why didn't they retry the focus, if it failed? Were they testing the focus system or the IQ? This is user error.
For K-7 iso 200 shot, review says contrast focussing failed(in liveview).

About K-x, they say they need more time to comment, but results are remarkable and could make them wish Pentax's K-7 new CMOS was not.
unfortunately the image used for comparison is not the same.
1 reply · active less than 1 minute ago
Yes, but still the test shots are with some reference value, even though each series is viewed and judged individually.
Thanks for the post!
Real Engineer's avatar

Real Engineer · 794 weeks ago

And notice that the K7 has been underexposed.
That makes a huge difference.

If I want pics like the K7 shown above I can make them, I can also make the K7 take ISO 6400 pics look like the Kx.

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