Quote:
Originally Posted by gregbradley
The SX Trius 694 is .74 arc seconds/pixel
I wonder if SX changed something more than just add argon to the CCD chamber and usb ports on the Trius?
I think its a lack of anti reflection coatings on the CCD chamber window.
I'll take it up with Terry Platt. The camera is good apart from that.
Greg.
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Greg, now that is interesting. I don't know if you saw my earlier thread posted between Xmas and New Years where I was getting a very odd relection using my barlow. It only appeared when the filter wheel was in place but I've not figured out what was causing it...only that it finally went away when Terry suggested that I put black matt paper over all the extension tube threads. Something was/is causing a massive refection back to those threads. Just why it only showed up with the FW in place doesn't quite make sense. But, maybe that is the cause of your issues as well. Please let me know what Terry tells you. I fear I will be plagued with the same issue you are seeing.
http://www.iceinspace.com.au/forum/s...d.php?t=115904
Peter
PS I'd appreciate your opinion as to the quality of the flat in the last post of my thread. I still see a little central brightening. OK??