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Forum: Pentax DSLR Discussion
06-28-2008, 12:24 AM
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1.01 only changed the company name from 'Pentax Corporation' to 'Pentax', which also confuse Picasa.
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Forum: Pentax DSLR Discussion
06-15-2008, 09:51 PM
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Because of time difference?
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Forum: Pentax DSLR Discussion
06-15-2008, 08:57 PM
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Thank you for using a PENTAX K20D digital camera.
PENTAX wishes to announce the release of Firmware Update Software Version 1.01 for K20D.
Firmware in this document is the software that runs inside digital cameras.
Changes to V1.01
* The following content have been improved in Version 1.01
Minimize the noise when taking picture with 2 seconds self-timer mode.
Caution
* Only K20D users are permitted to download the firmware update.
:):lol:
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Forum: Pentax DSLR Discussion
06-15-2008, 08:15 PM
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I don't know K200D, my selection is based on my K20D and K100D
2)
:)
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Forum: Pentax DSLR Discussion
05-28-2008, 08:19 AM
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No. I don't think Pentax could work out a new algorithm in couple of days by firmware. In my opinion, they just forgot to subtract dead/defective pixels in some scenarios (2s timer, remote 3s, etc.).
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Forum: Pentax DSLR Discussion
05-27-2008, 09:56 PM
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I just viewed this post on my desktop computer (with dell LCD) and couldn't see any hot pixels in my attached crop and I had to increase some degree of brightness to make them visible. Then I switched back to my old IBM T40 laptop, all those hot pixels are obvious:o. So using a tool such as dead pixel test could help to reach a fair conclusion.
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Forum: Pentax DSLR Discussion
05-27-2008, 09:38 PM
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I did a pixel mapping also before my test and got hundreds of visible pixels. I think you are lucky.
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Forum: Pentax DSLR Discussion
05-27-2008, 09:12 PM
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My Result:
1. ISO 200, 1/60, 2 sec mirror, M, lens cap on, High ISO Noise Reduction weak
13 pixels when threshold = 60
397 pixels when threshold = 20
628 pixels when threshold = 17
2064 pixels when threshold = 9 (still visible)
2. Same setting except 2 sec timer
0 pixels when threshold > 17
1 pixels when threshold = 17
108 pixels when threshold = 9
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Forum: Pentax DSLR Discussion
05-27-2008, 04:20 AM
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It seems that every K20D have this 2s-self timer bug. The problem is easy to reproduce. Not really related to liveview, iso and high iso noise reduction. I got about 2000 dead pixels (using a dead pixel test tool):(, pixel mapping doesn't help.
I think they are defective pixels instead of hot pixels because they are almost fixed. So I think it's just a ugly software bug and it should be easy to fix.
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Forum: Pentax DSLR Discussion
05-15-2008, 02:48 AM
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I found this issue is easy to reproduce. In fact, I rarely shoot in RAW (2 out of 2500 pics). But when I converted my only 2 dng (normal shoot without live view) files into tiff using DCRAW today, I did find out several hot pixels.
When I view the result in Picasa, I found Picasa doesn't remove hot pixels (of raw) either. So checking raw in Picasa seems to be the easiest way to verify this problem.
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Forum: Pentax SLR Lens Discussion
05-03-2008, 06:18 AM
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I think you will love SDM and build quality which come with DA* 50-135, so give 16-50 a chance.
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Forum: Pentax DSLR Discussion
04-18-2008, 07:58 PM
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My img number started with zero also. But my shutter count is img number plus 2xx. I think this count is reasonable (caused by by QC of factory?)
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Forum: Pentax DSLR Discussion
04-18-2008, 06:37 PM
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Forum: Pentax SLR Lens Discussion
04-08-2008, 08:17 AM
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Thank you all for the comments. I should provide more evidence for this lens, but I cannot, since most of the test pics had been deleted immediately after checking on camera.
In fact, I've returned this lens and ordered a K20D... WOW! Maybe I'll come back someday, to DA*16-50 II, ;)
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Forum: Pentax SLR Lens Discussion
04-04-2008, 05:56 PM
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I've done this test dozens of times, with an even flat focus chart, on tripod, SR off, and got the same result...
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Forum: Pentax SLR Lens Discussion
04-04-2008, 04:24 PM
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Forum: Pentax SLR Lens Discussion
04-04-2008, 07:02 AM
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Hello,
I found a problem when I did focus test with my new DA*16-50. It's clear that the right border is sharper than the left border especially at 50mm 2.8. Is it normal for DA*16-50? Is is a design defect or just a QC problem?
So what do you think, return or replace?
SN: 9011464
Made at: Dec, 2007
Thank you
red
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