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09-05-2009, 12:43 AM   #466
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QuoteOriginally posted by jgredline Quote
I have noticed some strange banding now at high ISO but as alow as ISO 640
I never did get the Green Line thing on my unit, but I noticed some banding before in dark areas of high-contrast shots. I thought they were some sort of JPEG artefact, and never paid much attention to it - made no noticeable difference to the photos - it wasn't visible in print or full screen.

Just taken about 100 photos with V1.01.00.09, didnt' notice anything, but I can't be sure whether its also gone.

09-05-2009, 02:51 AM   #467
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QuoteOriginally posted by jgredline Quote
I have noticed some strange banding now at high ISO but as alow as ISO 640
Javier, you cannot say this and not post the sample
09-05-2009, 02:57 AM   #468
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QuoteOriginally posted by kittykat46 Quote
I never did get the Green Line thing on my unit, but I noticed some banding before in dark areas of high-contrast shots. I thought they were some sort of JPEG artefact, and never paid much attention to it - made no noticeable difference to the photos - it wasn't visible in print or full screen.
Are the bands look like I've noticed and reported in the car picture asking to find green line posted in this thread ?
09-12-2009, 12:47 PM   #469
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I've installed 09 firmware, at first green line disappeared, but after a while it's back. Anyone experiencing the same? It shows at temperature between 30 and 37 C, and strange, at higher then 37 it almost disappears.

09-12-2009, 04:51 PM   #470
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I did some long exposure shooting last night, previously I had thoroughly tested my camera and I could not get the green line. Turns out some of my recent shots did have the line. But it was only a select few. I was not using live view and it was a relatively cool night so I found it a little odd that they appear on my system when the temperature is moderate.

edit: also I am running the lastest firmware.

I just hope that Pentax can fix this...

Last edited by noVICE; 09-12-2009 at 05:01 PM.
09-12-2009, 05:05 PM   #471
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QuoteOriginally posted by falconeye Quote
Javier, you cannot say this and not post the sample
Oh sorry. I re-installed the firmware upgrade and all problems fixed.
09-12-2009, 05:15 PM   #472
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QuoteOriginally posted by Jadran Quote
but after a while it's back
QuoteOriginally posted by noVICE Quote
Turns out some of my recent shots did have the line.
Are these cameras purchased with original firmware (prior to versions x.08 or x.09)?

If I understand Pentax correctly (I may be wrong), the firmware fix may not entirely cure the problem for a very small number of bodies which shipped before Pentax was aware of the problem. They have since tightened factory quality control to ensure that the problem is gone when applying the updated firmware.

In the rare case the firmware fix doesn't work satisfactorily, I suggest to contact Pentax support for having a look at it. I got the feeling that there shouldn't be more than a handful of bodies left in the world to encounter the problem.

@Jadran, noVICE, please provide shooting parameters (exposure time, ISO, RAW or JPG settings). Thank You.

Last edited by falconeye; 09-12-2009 at 05:20 PM.
09-14-2009, 09:57 AM   #473
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falconeye,

camera came with 1.0 firmware, according to exif it was made 5th of August 2009 (s/n 3401***). I see one green and one purple line starting to emerge at 30 C, and they slightly fade away after 36 C. I shoot RAW, lines can be seen on 400 ISO and above. If I push image exposure in Photoshop, it is slightly visible at 200.

They show at 30 C, no meter if I used live view or movie, but of course, in that case heating is much faster. So, lines are product of heating. And .09 firmware doesn't help.

09-14-2009, 10:05 AM   #474
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falconeye,

yes, camera came with 1.0 firmare (according to exif it was made 5. Aug 2009, s/n 3401***). I shoot RAW, and I see TWO lines starting to appear at 30C - one green and one purple, no meter of exposure time. They are visible at ISO 400 and higher, even slightly at 200 if I push exposure in Photoshop. No meter if I have been using live view or movie mode. Of course if I do, camera heats up faster. The lines start to fade away after 36C. And .09 firmware doesn't help.
09-14-2009, 10:16 AM   #475
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Here is crop from 1600 ISO 32 C, exposure pushed in Photoshop, so it could be more visible. As you can see, there is slight green cast between lines

09-14-2009, 10:42 AM   #476
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QuoteOriginally posted by Jadran Quote
Here is crop from 1600 ISO 32 C, exposure pushed in Photoshop, so it could be more visible. As you can see, there is slight green cast between lines
Please, contact Pentax for assistance.
09-14-2009, 01:56 PM   #477
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QuoteOriginally posted by falconeye Quote
If I understand Pentax correctly (I may be wrong), the firmware fix may not entirely cure the problem for a very small number of bodies which shipped before Pentax was aware of the problem.
Do you have any insight as to what is causing the problem for this very small number of bodies?

If the GLS was caused by a firmware bug, it should not depend on specific hardware copies. One could speculate that a very low numbers of sensors actually have broken pixels in the relevant (outer) area but that seems unlikely and would imply that QC now specifically monitors these pixels.
09-15-2009, 03:17 PM   #478
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QuoteOriginally posted by Class A Quote
Do you have any insight as to what is causing the problem for this very small number of bodies?
No, I do not.
All I know is that they have tighter QC now in order to ensure that the camera in conjunction with the new firmware delivers images free of pattern noise.

I speculate that the original routines handling pattern noise (as in the PRIME processor, and every dSLR has them!) had some limitations. And I further speculate that the fimware fix works fine as long as the unprocessed pattern noise (prior to PRIME processing) doesn't become too large. What QC now ensures. My speculation only!
09-16-2009, 12:21 PM   #479
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Time to apply the upgrade... My brand new K-7 shows DSP and CPU firmware versions are both 1.00.00.04. Thanks to everybody who's paved the way before me and compiled all this info!
09-19-2009, 06:25 PM   #480
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I just got my new K7 a couple of hours ago. Its a really nice camera I like it

I just did a check on my firmware on the camera.
Using PhotoME the exif data says this.

DSP firmware Version Ver 1.00.00.08
CPU firmware Version Ver 1.00.00.08

So do I need to update my firmware? I have only taken one photo with it so far. I wating for the battery to charge.
My serial number is 3402*** so maybe my K7 is newer and has the updates from the factory.
I havent went looking at my 1 photo yet to see if there was a green line.
Also my shutter count is 286 is that normal for brand new?
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