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Forum: Pentax K-3 & K-3 II 10-19-2013, 02:26 AM  
Full size high ISO K-3 JPEGS
Posted By LDevil
Replies: 34
Views: 6,988
"We thank the Russian representative office Pentax for the opportunity and permission to publish."
Forum: Pentax K-5 & K-5 II 02-02-2011, 06:33 AM  
k-5 firmware hacking anyone?
Posted By LDevil
Replies: 33
Views: 21,881
It seems that even the proper extensions is not known at the moment.
Newest firmware contains "C:\%08d.%03d" string. So we have to guess not only 8 digit number, but also 3 digit extension. What is worse, it is possible that every new firmware version will use different numbers.
Forum: Pentax K-5 & K-5 II 01-24-2011, 03:54 AM  
Liveview AF back-focus with Tamrons...
Posted By LDevil
Replies: 3
Views: 3,429
I have similar problem with my T70-200. For focal lengths > 135mm contrast AF doesn't work :(
I have tried several times to focus on these branches, but without luck.
http://my.pentax.org.pl/ldevil/K-5/AF/IMGP6324.jpg
Similar here, I was pointing at this road sign, but it was impossible to get in-focus picture.
http://my.pentax.org.pl/ldevil/K-5/AF/IMGP6320.jpg
In booth cases contrast AF confirmed that it set the focus correctly.
Forum: Pentax K-5 & K-5 II 12-14-2010, 02:29 PM  
K-5 Firmware Suggestions
Posted By LDevil
Replies: 259
Views: 43,483
Option to activate shutter on grip only when body is rotated 90 degree CW or CCW. Person with big hands could accidentally activate shutter on grip when holding camera horizontally.
Forum: Pentax K-5 & K-5 II 12-08-2010, 01:03 PM  
Poll: Stains on your K5d sensor poll
Posted By LDevil
Replies: 544
Views: 138,004
One dot, almost in the centre of picture, visible from F/9. Bought in Poland, SN: 38395xx. Tomorrow I will send my camera to local service center.
Forum: Pentax K-5 & K-5 II 10-26-2010, 02:02 PM  
K5 Buffer
Posted By LDevil
Replies: 133
Views: 26,250
Thanks a lot imtheguy!
Forum: Pentax K-5 & K-5 II 10-26-2010, 01:00 PM  
K5 Buffer
Posted By LDevil
Replies: 133
Views: 26,250
So it looks that when shooting in RAW@ISO>6400 buffer fills up after 4 frames. But what happened after then? What is the average FPS after first 4 photos? Can somebody count how many RAW photos can be captured in e.g. 3 seconds? It would be nice if a stopwatch will be photographed during such test - thanks to this it will be easy to say how long you have to wait for saving photo from buffer to card.
Forum: Pentax News and Rumors 10-08-2009, 04:16 PM  
New lens from Samyang 14mm f/2.8
Posted By LDevil
Replies: 60
Views: 22,382
It's good idea, because this lens has a big problem with flares:
Samyang 14 mm f/2.8 IF ED MC Aspherical review - Introduction - Lenstip.com
Forum: Pentax DSLR Discussion 05-11-2008, 04:11 AM  
To all concerned with K20D/Hot Pixel Issue
Posted By LDevil
Replies: 170
Views: 26,603
K20D tested by optyczne.pl was from official polish distributor.
Forum: Pentax DSLR Discussion 05-10-2008, 09:49 AM  
To all concerned with K20D/Hot Pixel Issue
Posted By LDevil
Replies: 170
Views: 26,603
I just wanted to say, that JPEG files from body should be only used to check quality of JPEG files from body. They shouldn't be used to check for hot pixels existence, lens resolution, etc.
Some people says that this problem exist even on ISO100 and fast shutter speeds.
Probably this problem exists, because some testers wanted to test images produced by K20D body instead of images produced by K20D+PPL/ACR/another black box. And they probably see too much hot pixels. It's also confirmed by some people that files developed by PPL are void of hot pixels.

So if you're using PPL, ACR or something similar, you will probably never see any hot pixels, even if they exists in RAW file.
Forum: Pentax DSLR Discussion 05-10-2008, 03:27 AM  
To all concerned with K20D/Hot Pixel Issue
Posted By LDevil
Replies: 170
Views: 26,603
JPEG from camera can't prove anything. It's better to shoot picture in RAW and convert it to some lossless format using DCRAW.
If you're shooting in JPEG or using PPL to develop PEF files, you will probably not see any hot pixels, even on camera which produces a lot of hot pixels.
Forum: Pentax News and Rumors 01-24-2008, 11:01 AM  
K10 or K200?
Posted By LDevil
Replies: 29
Views: 7,900
K200 allows you to enter AF adjustments for 20 different lenses.
http://www.pentaxslr.com/pdf/k20.k200brochure.spread.pdf (page 16)
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