#21  
Old 30-05-2013, 05:26 AM
Dennis
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Quote:
Originally Posted by peter_4059 View Post
Finally got around to taking a pic - this is how I've got my UV/IR filter installed - it not on the end of a nosepiece - is this how others have done it?
Quote:
Originally Posted by h0ughy View Post
no but i might look at doing something like this
With just the 1 inch filter screwed directly into the camera body, is there sufficient depth to the filter ring to slide into a typical 1 inch eyepiece fitting?

For my set up, the main reasons for using the 1 inch nosepiece was to allow the camera to be attached to a 1 inch eyepiece fitting and keep the filter away from the chip to make any dust spots on the filter out of focus.

I wonder it Peter uses a 2 inch fitting?

Cheers

Dennis
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  #22  
Old 30-05-2013, 12:31 PM
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asimov (John)
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I'll bite - How come you blokes are using an IR/UV cut on a mono imager, hmmmm?
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  #23  
Old 30-05-2013, 05:07 PM
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peter_4059 (Peter)
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I've got the camera connected to the focuser via the t-thread - my focuser has a 1.25" bore (that the filter fits within) and a male t-thread that the camera screws directly onto. You could also attach a 2" nosepiece with a t-thread onto the front of the ASI.

John - I'm using the UV/IR filter to protect the CCD and keep it clean.
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  #24  
Old 30-05-2013, 07:51 PM
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asimov (John)
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No worries, it's just that I've done side by side tests with the DMK21 with the Baader IR/UV cut & without, & I received a better result without any filtering at all. I also realize it's a real pain to be having to clean dust bunnies off a chip every 15 mins!
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