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06-21-2011, 07:20 AM   #16
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I have both. It's an easy choice for me. The K20D is my main camera. I prefer the look of K20D images at any ISO below 3200 and I much prefer the semi-pro controls. I don't care about video or rapid-fire. The next camera I buy will replace the K-x, I'll keep the K20D.


Last edited by audiobomber; 06-21-2011 at 07:28 AM.
06-21-2011, 07:23 AM   #17
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We have a K-x and a K20D. I like them both. But to me, there is a noticeable difference in image quality. I like my K20D images at 100 or 200 ISO. I like the K-x images all the way up to 800 ISO. If you are trying to do wildife photography which tends to be more morning and evenings, and you can't get a Pentax lens over 200mm at less than F:4, that extra 2 stops is huge. In many cases the difference between getting a decent shot, and missing it altogether. When I get my k-5 it will be the K20D that gets traded in, not the K-x... but I guess that's a totally different issue, but perhaps a bit relevant. For now, I use the K20D for everything but low light. But, if I had just one camera.. I think it would have to be the K-x. That low light performance is just too good to lose.
06-21-2011, 07:27 AM   #18
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QuoteOriginally posted by normhead Quote
But, if I had just one camera.. I think it would have to be the K-x. That low light performance is just too good to lose.
Maybe it's your noise reduction settings. DXOMark has them dead even for noise levels up to ISO 1600.
06-21-2011, 07:32 AM   #19
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I'll have to check that out..audiobomber, maybe there's something I can correct. Where are those darn manuals again?

06-21-2011, 07:45 AM   #20
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QuoteOriginally posted by normhead Quote
I'll have to check that out..audiobomber, maybe there's something I can correct. Where are those darn manuals again?
FWIW, the K20D factory default is "NR off". The K-x default is Medium, starting at ISO 800. I find the K-x default levels excessive, causing a plasticky look. I shoot raw, but I leave the K20D set for Weak, and the K-x set for Low and ISO 1600. I convert in DCU4, so the settings are applied unless I change them. For very noisy photos, I use Noiseware standard edition.
06-21-2011, 11:09 AM   #21
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If you shoot mostly primes, I would keep the KX. I use the K20d, and could not be bothered to swap (I'm waiting for the body to outright break, and hopefully by then, the KR will be considered old news junk).

The K20d is a larger camera. I used to really value dual e-dials, but if you spend most of your time in AV mode (or something like it) then the extra dial is not really needed.

WR of the body is only helpful if the lens is WR. Almost none of the primes are WR.

The little LCD is helpful, but high ISO is much more useful.

The K20d is stellar from ISO 100-400. 800-1600 has a nice film-like grain, but the colours are not very good. In general, the KX matches the K20d at low ISO and wins at high ISO.
06-22-2011, 12:52 AM   #22
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QuoteOriginally posted by audiobomber Quote
Maybe it's your noise reduction settings. DXOMark has them dead even for noise levels up to ISO 1600.
Reviews aside, I shoot raw, and I can tell the difference between the K-x and K20d at ISO 1600.
06-22-2011, 10:18 AM   #23
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Do the camera presets affect RAW settings?

06-22-2011, 10:20 AM   #24
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no, they do not, but a jpeg with the in camera jpeg setting will be embedded in the raw data should you want to extract and use it
06-22-2011, 12:15 PM   #25
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Thanks to all for the opinions expressed... I'm going to hang on to the K-x for the time being, (try to) put a kurb on the LBA and (attempt) to save for Pentax's next DSLR offering (K3 or whatever... As I shall now be refering to it as)...

Cheers again
Dave
06-23-2011, 06:39 AM   #26
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The K20 is heavy and a real pain around the neck after a while - not a comfortable walk around camera. The ISO noise is a lot higher, dont be kidded by those who say otherwise - you get crappy noisy images at 1600iso in poor light whereas the KX is still looking good at 3200.

Dynamic range is less on the K20 as well - it is old fashioned and well suited for a studio. Sure, built like a tank, has extra controls and all but I moved on from a GX10 (same body as K20) and haven't looked back. I even like reading data off the screen - much clearer than the top LCD and the menu layout is excellent, well thought through and easy to use.

Bottom line, you want good pictures, day and night? The K-X beats the K20 any day. That's why they make new cameras! If you want to use it in the rain, then the K20 will beat the K-X.
06-23-2011, 06:40 AM   #27
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QuoteOriginally posted by normhead Quote
Do the camera presets affect RAW settings?
Not directly, but they may depending on your software. I use Pentax DCU4 for raw conversion, which directly translates all camera settings for sharpess, contrast, hue, saturation and noise reduction. Some other conversion softwares attempt to incorporate camera settings, or can do so, depending on settings.
06-23-2011, 07:59 PM   #28
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Since you said you'd have to sell the K-x in order to get a K20d, I am assuming K-5 is probably not an option at this moment.

In that case, I'd ditch the tiny little K-x for the K20d. And I'd definitely ditch it in a heartbeat if the K-x was in Pink, White, Purple, Yellow or any color other than Black.

I've had them both and used them quite a bit, but when I needed to sell stuff to accumulate funds for other things, the K-x was one of the first ones to go on the Market Place. For my needs, K-x offered nothing more than what my K20d could do except video, which I used a couple of times in over a year just to see how it worked.
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