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Old 17-09-2013, 03:22 PM
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cometcatcher (Kevin)
<--- Comet Hale-Bopp

cometcatcher is offline
 
Join Date: Jan 2005
Location: Cloudy Mackay
Posts: 6,542
Quote:
Originally Posted by Jon View Post
...why can't you use a monochrome camera with RGB filters with an achromatic refractor and simply refocus with each filter?
I don't have a deep sky capable monochrome camera to try it. Well I do, but it's a low res video camera.

My DSLR has a digital monochrome filter, but it clips the histogram if I try to use it for some reason. The other option is to leave the camera in colour mode. I've tried with cheap filters and still have CA getting through. I may need a stronger blue filter. I don't have a set of 'real' 48mm RGB filters. They are quite expensive.

The whole point of this is to do it on a budget using pieces of string, wood, duct tape and glue. My orange filter is held in place with a blu tack like glop!
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