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10-23-2009, 05:08 AM   #1
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Another Gallery of K-x Photos at all ISO Ratings

Pentax kx ISO Comparison - Enche Tjin Photography- powered by SmugMug

If the link doesn't work, these are on the Radiant Lite Photography website.

They include the following quote: "So far, Pentax K-x is the best low light Pentax digital SLR camera ever."

Bob

10-23-2009, 05:23 AM   #2
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Nothing new but this is a decent look at real life image results with full-size comparisons.
Noise becomes very noticeable at ISO 3200 esp. in the shadows, ISO 6400 is possibly usable, and ISO 12800 is quite laden with noise all over - not very useable to me.

But it again confirms at least a 1 stop noise control advantage to the K20D/K-7...
10-23-2009, 05:44 AM   #3
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QuoteOriginally posted by Ash Quote
Nothing new but this is a decent look at real life image results with full-size comparisons.
Noise becomes very noticeable at ISO 3200 esp. in the shadows, ISO 6400 is possibly usable, and ISO 12800 is quite laden with noise all over - not very useable to me.

But it again confirms at least a 1 stop noise control advantage to the K20D/K-7...
I'm shocked a bit. The per pixel resolution looks better than 14.6 MP. Noise is too low.
10-23-2009, 08:52 AM   #4
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Wow, the 12800 is shockingly decent.

10-23-2009, 08:59 AM   #5
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Thanks for posting these (or linking to them?). If people haven't, try clicking thumbs back and forth. You get an instant switch on the main pic between two ISOs, and can watch the noise appear and disappear. I'm very impressed by 1600. It wasn't until 3200, that things really start to change.
10-23-2009, 11:30 AM   #6
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"Shockingly decent" at ISO 12,800? It's flat out amazing after a pass through Noiseware.

Last edited by tarsus; 12-23-2009 at 06:15 AM.
10-23-2009, 11:39 AM   #7
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QuoteOriginally posted by tarsus Quote
"Shockingly decent" at ISO 12,800? It's flat out amazing after a pass through Noiseware.
awesome! did you have larger sizes anywhere?
10-23-2009, 12:51 PM   #8
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See my original post for the link

The linked site has all sizes including "original".

10-23-2009, 01:24 PM   #9
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I wonder what NR settings the camera had to produce those high ISO results...
10-23-2009, 01:31 PM   #10
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QuoteOriginally posted by BobRad Quote
The linked site has all sizes including "original".
I think he meant he wanted to see a full-size version of the Noiseware-processed image referenced above...
10-23-2009, 02:15 PM   #11
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Wow..this is amazingly good for High ISO.
I never thought that the K-x will be this good.
It seems like 2 stops or even more better than my K20D.

Did anyone ever compared the K-x with K20D?
10-23-2009, 02:45 PM   #12
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I don't know, I think maximum 1 stop advantage over the K-7, if that ???
10-23-2009, 05:31 PM   #13
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Thanks Bob

I'm totally impressed. Those shots are easily 2 stops better than my K20D. As an avid night photographer the thought of cutting my exposure time by 4 is very appealing. A 10 minute exposure in just over 2 minutes, that saves a lot of time.
10-23-2009, 05:58 PM   #14
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Somebody in Hoya made a major screw up... with K7... it seems... That little puppy is so much ahead...
10-23-2009, 06:13 PM   #15
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i still cant beleive how good 3200ISO is, that is where the most practical improvement is IMHO
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