If its not one its another................

[Earl]

Sigh round and round in circles I go.

[Psychobilly]

looks like it maye be dew to me...?

[Earl]

and the dreaded reflections with it :|

[Psychobilly]

I suppose if it was easy everyone would be doing it...

Hope you get to the bottom of it and get it sorted soon...

Peter...

[Earl]

Dew on the CCD itself, on the inside of the IR filter and the outside of the IR Filter.

[Earl]

Well im looking at a replacment IR Filter to a Astronomik CCD CLS that is one less piece of glass in the optical train, and I believe will solve the reflection issues.

And a M42 Heater on the filter also.

Why dont they make these things better in the first place.... grrr

[Earl]

Well the Filter is ordered and Im going to try a 2" Dewband around the filter to stop dewing, I hope this does not mess with the TEC cooling of the chip.