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Forum: Pentax DSLR Discussion
04-10-2007, 02:57 AM
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I can't afford the next model...
Larry
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Forum: Pentax DSLR Discussion
03-30-2007, 05:58 PM
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JPG out of the camera on Bright, -2 saturation, -2 sharpness, -2 contrast.
In photoshop CS2:
Slight increase in contrast (+5),
Reduced,
Noiseware Pro NR slightly applied - slightly more for chroma noise,
Sharpened with smart-sharpen .3 pixel at 150%,
Posted. Blue & white out of focus no-texture baseball hat in foreground.
Larry
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Forum: Pentax DSLR Discussion
03-30-2007, 05:19 PM
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The answer to this is "Not as a requirement to get this issue"
The example I posted was not a 100% crop on screen, and no pixel peeping needed to see it. And, that was a shot I just took yesterday when I posted it. Telling Pentax it must be just pixel peeping might mean the issue for them has now ended. Hopefully your guys read some of the threads that are linked here in this thread. Especially GordonBGood's more technical explanations so they won't have to attempt to understand what the problem is to begin with, and what we may be doing "wrong" to get it. It's not a fault of ours.
It is a RAW & jpeg problem. Actually it appears more in RAW because its not reduced to 8 bit.
You mentioned that you would use any tool to get the picture you envision. Including shooting at high ISO if needed. If you combine a situation where you want the noise of high ISO in your photo, plus have various mid-shadow areas in the shot but the model is of course at the right level - you are setting yourself up for some vertical streaky patterns in the noise in those mid shadow areas. Looking at the whole photo, not 100%, you might get distracted by these patterns and so will others. Depending on if you can see the noise in your prints in these shadow areas (and they're not just too dark), there's no reason you would miss those patterns in those prints.
There's enough info out there describing exactly what is happening so you need not invest much time explaining this issue to Pentax for us. If they just do a little intelligent reading and are smart enough to look past the belligerent posts screaming that it is just everyone's bad overworked photography creating this - and read the actual causes - they can get to work on it and we won't have to keep explaining it as if it is elusive.
Larry
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Forum: Pentax DSLR Discussion
03-30-2007, 02:30 AM
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It's tough to verbalize, but you can see one dark vertical line/pattern starting at the left wisp of hair "touching" the hat, and another to the right, and also broken parts of "stripes" on either side.
It is minimized a bit due to a little NR (I tried not to get too smeary). I didn't intend to show this pic as it pushes the SR to my limits - 300mm f5.6 1/20 sec. ISO 1600
Larry
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Forum: Pentax DSLR Discussion
03-30-2007, 02:24 AM
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That's a powerful email directly to the point. If they need samples of properly exposed shots showing it, that will be easy. - let me know.
Please tell us their response when it comes in.
Larry
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Forum: Pentax DSLR Discussion
03-30-2007, 12:08 AM
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Hi Ben,
There's not a big area of mid shadow in the below shot, but you can see the dark vertically streaked pattern in the noise in the out of focus blue hat at the bottom of the frame. I would consider this photo properly exposed. And, this is with a bit of NR - without it, it was worse. If the mid shadow region was bigger, and important to the photo, it would be more annoying.
I believe it can be fixed in firmware, but nobody knows anyone at Pentax that will cause Pentax to stop simply denying the issue, and eventually suggesting we buy the new K10D 2 coming out in summer/autumn that completely eliminates the problem. (Which I wouldn't be able to afford to do.)
Larry
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