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Old 15-12-2010, 12:44 PM
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wmzaphod
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Comments anyone?

The attached image contains 2 frames from a brand new opticstar 142M ICE camera.

First use of the camera using 2 minute exposures showed a white patch in the top left corner which was more pronounced in the darks. I notified opticstar the day after I took my first images and received a reply stating sensor "Glow" is normal.

Sensor Glow is normal but after only 2 minutes and on a cooled camera -hmmmm.

So, I did some investigation and found that if I turned the cooling off, the glow almost dissapeared - turn it on re-appeared..... as per attachment......I believe the peltier cooling device has been wired in reverse so it's heating not cooling!

Opticstar can't see the problem tho and have asked me to take dark images with the cooling off and then on (which I have already done)????? Very frustrating!

Does anyone here think the camera might have a problem?

Very unhappy

http://farm6.static.flickr.com/5163/...cefb2cd995.jpg
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Old 15-12-2010, 01:45 PM
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jenchris (Jennifer)
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That's obviously wired backwards - it's all hot not just the corner,
If it was glow in the normal sense, it would be just in the corner
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Old 15-12-2010, 01:46 PM
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RickS (Rick)
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I'd be complaining if it was my camera! Do you have any software that lets you check the sensor temperature?

Cheers,
Rick.
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Old 15-12-2010, 01:55 PM
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mswhin63 (Malcolm)
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If the peltier module is in the rough location to the glow then yes it is reversed, although if it is a completely different location you may have something else creating the problem.

I wouldn't be happy either.
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Old 15-12-2010, 03:14 PM
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wmzaphod
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Thanks Guys,

I haven't dissmantled it but I'm assuming the peltier sits in contact with the sensor???? I'm just stunned something so obvious is so hard for the supplier to admit to

Pj
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Old 15-12-2010, 09:09 PM
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jenchris (Jennifer)
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It's a bother - and takes up time.
What they don't seem to remember is that they've contracted to perform a job. and didn't actually do it
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Old 15-12-2010, 10:14 PM
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wmzaphod
Optically Obsessed

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Quote:
Originally Posted by jenchris View Post
It's a bother - and takes up time.
What they don't seem to remember is that they've contracted to perform a job. and didn't actually do it
I know, the support person still cannot determine that there's a problem from the images (above). It feels like the company is just trying not to service their faulty product........
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