Thread: Sensor Glitch
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12-21-2008, 07:38 PM   #18
jeffkrol
Pentaxian
 
Location: Wisconsin USA
Gallery Photos: 2
Posts: 1,635
Originally Posted by Sharkonwheels View Post
When I view the raw versions (PEF - both Pentax PhotoLab and Lightroom, and DNG in Lightroom) it's still roughly the same size.I just showed you the jpg version, but it's the same on the RAW version. Between 7x7 and 9x9 depending ont the colors and contrast between the colors.

I will do the test now, and report the results.

Hmmm....wonder if I'm doing something wrong?
Set the mode to 'M' and then as the instructions say, do a 1/30, 1sec, 2sec, 3sec, 4sec shutter speed snaps.
Tried as DNG, and exporting from lightroom, the pixeltest app scans in like 3 seconds. Nothing in the preview,
histogram shows nothing, and no dead/hot pixels.

Is it possible the test is running on 14M+ pixels in 3 seconds?

export is TIFF, 16 bit, sRGB colorspace

Also tried using PEF, exporting in Pentax PhotoLab to Tiff, 16bit, basically same exact result. 3 seconds to scan
a 14MP picture seems a bit fast to me!

T
Default threashold of 60 is too high... drop it down.
At 20 I get 2 HP. 10 seems about right. Look for clustered coordinates. Yes scan is very fast.
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