Help!!

[Helen]

Can anyone suggest what's going on here please? taken with a Mono Atik460 with a Ha filter. 450s subs - weather not too good, and the obvious dust bunnies, but it looks like some sort of CCD problem

Any suggestions for putting it right??

Thanks

Helen

[rfdesigner]

I've seen this problem pop up on DSLRs (just on bulletin boards like this, not my cameras) and so far I haven't seen a cure or reason proposed.

Basically it looks like a sort of inverse anti-blooming, I can only think the bright signal is somehow effecting the reference point for the follwing pixels within the same row.

Are the stars actually saturated in the image, or just bright?

Derek

[steppenwolf]

Hi Helen, does this camera have an anti-blooming gate? This looks like an anti-blooming gate in overdrive, i.e. it is overdoing the anti-blooming on bright stars. What CCD camera is it?

[Helen]

Thanks both. Its an ATIK 460 mono Steve. I've had it since Christmas, but this is the first time I've used it because of weather.

Helen

[steppenwolf]

Hi Helen, this camera has a SONY ICX 694 sensor and does indeed have an anti-blooming gate so it is possible that it needs adjustment. This is not really an end user adjustment unless you get confirmation of the fault and the go-ahead to strip it down and adjust from ATIK/your supplier.

[Helen]

I'll disconnect everything and put it back together and test, just to be sure. If the problem is still there then an email to Martin @FLO.....

Thanks

Helen

[opticalpath]

Someone else reported exactly this problem with an Atik 460 on the Atik forum:

http://www.atik-cameras.com/forum/index.php?topic=368.0

It was diagnosed by Atik as a sensor fault and repaired under warranty.

Hope it's a straightforward fix for you.

Adrian

[Helen]

Thanks for the link Adrian, that does look like an identical problem! I'll contact FLO.

Helen