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Old 06-04-2017, 07:41 PM
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ChrisV (Chris)
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Join Date: Aug 2015
Location: Sydney
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Originally Posted by that_guy View Post
Its so cheap its worth a go. But it might be a bit severe on an ED80. As Alex says, if you can reduce the sensor-reducer distance it will be less severe. And you won't be able to go much above a 1/3" camera sensor as you'll get bad vignetting & coma. I've used meade & celestron F6.3 & 3.3 SCT reducers on my refractor - shifting it from F5.9 down to 3.5 before I ran out of in-travel. The coma got pretty bad though.
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