gx20 nproblem

royd63uk
Posted 05/10/2009 - 14:09 Link
Just been away for the weekend ,was taking photo's all was fine ...then all of a sudden the next shot i took (3 mins later)was over exposing the rhs of the image only.......please look here and advise.There was no lens change or shock etc to camera between the shots

link


Roy
regards
Roy

Pentax K3 gripped,and some lenses
https://www.flickr.com/photos/pentaxroy/

my pbase gallery
Anvh
Posted 05/10/2009 - 17:49 Link
Is it a returning problem?
Stefan
Comment Image

K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
royd63uk
Posted 05/10/2009 - 18:16 Link
Hi Stefan
No it's the first time this has happened?

Roy
regards
Roy

Pentax K3 gripped,and some lenses
https://www.flickr.com/photos/pentaxroy/

my pbase gallery
Anvh
Posted 05/10/2009 - 18:28 Link
I had it twice with the K10D that the sensor failed or something in between since I got blank photos with a green line across it but for the rest it's working fine after a putting it on and off.
Stefan
Comment Image

K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
George Lazarette
Posted 05/10/2009 - 19:13 Link
I was convinced I had a problem with my K10D, and discovered a faulty graphics card was destroying the pictures.

G
Keywords: Charming, polite, and generally agreeable.
royd63uk
Posted 05/10/2009 - 19:33 Link
George it shows just the same on the camera immediatlely after taking them.

Roy
regards
Roy

Pentax K3 gripped,and some lenses
https://www.flickr.com/photos/pentaxroy/

my pbase gallery
George Lazarette
Posted 05/10/2009 - 19:38 Link
Can't be the graphics card, then. Battery was OK?

G
Keywords: Charming, polite, and generally agreeable.
royd63uk
Posted 05/10/2009 - 19:53 Link
yes fully charged
regards
Roy

Pentax K3 gripped,and some lenses
https://www.flickr.com/photos/pentaxroy/

my pbase gallery
Mannesty
Posted 08/10/2009 - 23:23 Link
It looks like a sensor problem to me. I was going to suggest that it was a sticky shutter curtain, but then realised, it's a vertical run shutter so that's unlikely to be the cause.

It should be repairable but might not be economical to do so.

Have you tried another battery?
Peter E Smith - flickr Photostream
Edited by Mannesty: 08/10/2009 - 23:24
fatspider
Posted 08/10/2009 - 23:47 Link
Quote:
it's a vertical run shutter so that's unlikely to be the cause.
I cant find ANY form of shutter in my K10 or 20, I assume the sensor just switches on and off.

Is it getting late over there Peter
My Names Alan, and I'm a lensaholic.
My PPG link
My Flckr link
Anvh
Posted 08/10/2009 - 23:59 Link
impotentspider wrote:
I cant find ANY form of shutter in my K10 or 20, I assume the sensor just switches on and off.

Is it getting late over there Peter
nope it has a shutter because switching the sensor on and off doesn't work.
Use two second delay while not using a lens and you will see the shutter.

ps. a bit more explained.
Reading out those pixels takes time, so you need to cover them up because if you cut the voltage they will lose their information and if you don't cover them up the will keep on reading the light.
Read about it link
Stefan
Comment Image

K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
Edited by Anvh: 09/10/2009 - 00:12
fatspider
Posted 09/10/2009 - 00:14 Link
Quote:
nope it has a shutter
And so it does Stefan, I'm glad someone is awake and knows what they're doing. I've only looked inside and fiddled with the sensor for cleaning so never actually seen it. I always assumed it wasn't an actual physical shutter but rather the sensor which activated pixels in a simulation of one, vertically of course
My Names Alan, and I'm a lensaholic.
My PPG link
My Flckr link
royd63uk
Posted 09/10/2009 - 18:30 Link
Have tried a new battery,with and without the grip.
In live view you can see it before taking the image....spooky like 2 halves with different exposures.

Roy

had thought of getting it repaired but may just save for a new k20d or even a k7
regards
Roy

Pentax K3 gripped,and some lenses
https://www.flickr.com/photos/pentaxroy/

my pbase gallery
Mannesty
Posted 10/10/2009 - 00:08 Link
If it shows in live view, it's definitely a sensor (or associated electronics) issue.

A full factory reset and/or a firmware reload might sort it out, but I doubt it. Worth a try.
Peter E Smith - flickr Photostream
royd63uk
Posted 10/10/2009 - 09:23 Link
Hi Peter
Thanks I might as well give it a try,might sound silly but is a factory reset the reset in the menu system?

Roy
regards
Roy

Pentax K3 gripped,and some lenses
https://www.flickr.com/photos/pentaxroy/

my pbase gallery

Add Comment

To leave a comment - Log in to Pentax User or create a new account.



Proudly supporting Pentax User

Samsung Logo Asahi Pentax Logo