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What just happened to my K10d?? All photos with purple cast .

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yclnyc

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Hello all --

Some advice / knowledge would be much appreciated:

A bizarre thing happened to my K10d just now. I was taking photos outside all afternoon, with no problems. Then, after turning the camera off for about 15 minutes, when I turned it back on and took another picture, the entire picture had a deep purple cast throughout the image. Same with every subsequent image.

And when I checked the histograms, they showed essentially zero 'activity' in any of the red, blue, or green channels.

I checked everything I know of: Not a white balance issue (images are just different shades of purple in the different WB settings!); not a Jpeg or RAW issue; not a filter issue; nothing to do with the saturation or contrast or color space settings in the camera.

Does anyone know what happened?

I'll call Pentax tomorrow morning, but wanted to make sure I didn't miss something totally obvious.

Thanks in advance

--
http://yclee.zenfolio.com
 
Try a shot in the 2 second drive mode. Do you see the mirror flip up?

Thank you
Russell
 
Russell Evans said:
Try a shot in the 2 second drive mode. Do you see the mirror flip up?

Thank you
Russell
Click to expand...
I THINK I see it. Anyway, everything works just fine on the 2-Second Drive Mode -- except that the same problem exists.

***

BTW - I tried to search for "purple cast" on this forum, and apparently what happened with my K10d has occurred with others. It's sometimes cold-temperature related. But seems to indicate either a faulty sensor or something that may be fixed by firware update. Not sure, and I've never upgraded from 1.0, ...

--
http://yclee.zenfolio.com
 
Russell Evans said:
yclnyc said:
Russell Evans said:
Try a shot in the 2 second drive mode. Do you see the mirror flip up?

Thank you
Russell
Click to expand...
I THINK I see it. Anyway, everything works just fine on the 2-Second
Drive Mode -- except that the same problem exists.
Click to expand...
If you can see through the view finder after pressing the shutter,
then it didn't flip.

Thank you
Russell
Click to expand...
OK -- I know what you mean now. Yes, the mirror does flip. But, alas, purple remains.

Oy.

Glad I kept the K100 for such occasions ...

--
http://yclee.zenfolio.com
 
Change the Instant Review display time to 5 seconds. Remove the SD card and take a photo. When the photo appears on the display use the rear e-dial to magnify the preview. Do you see the purple cast?

Thank you
Russell
 
I have an incident with my K10D as well. Instead of purple casting, I get a totally GREEN shot of RAW image, as displayed on my camera's LCD. But when I copied the RAW into my PC, it was actually just B&W.

What gives?

But it only happened ONCE.
 
Does it look like:



This is from my daughter's first K100D. On the first day, 1 of 10 shots were like that, the frequency increased steadily, and as I returned it after a couple of days, about 1 of 3 shots had a strong magenta shade. The camera was replaced under warranty (with another one with a bad sensor - bad case of hot pixels - but the third body was, and still is, excellent :-))
--
Espen
 
My Canon A40 did that, right after coming in from the cold. It went away after an hour or so and has been fine ever since. I eventually gave it away.
  • Andrew
 
gazonk said:
Does it look like:



This is from my daughter's first K100D. On the first day, 1 of 10
shots were like that, the frequency increased steadily, and as I
returned it after a couple of days, about 1 of 3 shots had a strong
magenta shade. The camera was replaced under warranty (with another
one with a bad sensor - bad case of hot pixels - but the third body
was, and still is, excellent :-))
--
Espen
Click to expand...
Yes, it basically looks like that.

BUT ... my problem now is gone!!

This morning, after waking up, I tried it again. Same problem.

Came to work, and was about to find the right phone # and warranty info etc. to call Pentax, but said to myself, "Let's try it one more time." And I did, and now everything's back to normal!

I'm happy, of course. But now am wondering when this'll happen next. And given others' experiences, it seems like this WILL happen again. And next time, it won't likely be in the warranty period.

Oy. My faith in my K10 has been somewhat shaken ...

--
http://yclee.zenfolio.com
 
yclnyc said:
Came to work, and was about to find the right phone # and warranty
info etc. to call Pentax, but said to myself, "Let's try it one more
time." And I did, and now everything's back to normal!

I'm happy, of course. But now am wondering when this'll happen next.
And given others' experiences, it seems like this WILL happen again.
And next time, it won't likely be in the warranty period.
Click to expand...
Hmm, if warranty is soon running out, I think I'd call them. You have plenty of pictures to show them (I gave them a CD with a series of pictures with 1/3rd showing magenta tint).
--
Espen
 
I would send it in. You isolated it to the camera and that is about all you can do.

Thank you
Russell
 
Hi,

had the same thing happening on two successive K10D bodies. Only occurred in cold temperatures (around freezing level).
First camera just got replaced.

Second camera was not as prone to this as first one, but was showing the same phenomena when 'forced'. Did some testing using my fridge/freezer as I didn't want it to happen to me in the field again.

Back to Pentax Canada, where they upgraded the firmware claiming that that would fix it. It did, never happened again.
But,

talked to Pentax Europe while in Germany over Christmas and they aknowledged, that this phenomena was known to occurr due to a fault soldering connection. Left my camera with them for a couple of days while they fixed this, replaced the chipped off bottom plate, and callibrated my three AF lenses to the camera.
Awesome service from Pentax Europe in Hamburg! They know their cameras.

Cheers,
Torge

P.S.: Here is one of the old threads where this was discussed:
http://forums.dpreview.com/forums/read.asp?forum=1036&message=21302981
yclnyc said:
Hello all --

Some advice / knowledge would be much appreciated:

A bizarre thing happened to my K10d just now. I was taking photos
outside all afternoon, with no problems. Then, after turning the
camera off for about 15 minutes, when I turned it back on and took
another picture, the entire picture had a deep purple cast throughout
the image. Same with every subsequent image.

And when I checked the histograms, they showed essentially zero
'activity' in any of the red, blue, or green channels.

I checked everything I know of: Not a white balance issue (images
are just different shades of purple in the different WB settings!);
not a Jpeg or RAW issue; not a filter issue; nothing to do with the
saturation or contrast or color space settings in the camera.

Does anyone know what happened?

I'll call Pentax tomorrow morning, but wanted to make sure I didn't
miss something totally obvious.

Thanks in advance

--
http://yclee.zenfolio.com
Click to expand...
--



More of my pictures are here: http://www.pbase.com/torge/

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