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Old 22-04-2012, 06:27 PM
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gregbradley is offline
Join Date: Feb 2006
Location: Sydney
Posts: 16,568
You'd really need to ask for owners of specific telescopes you are interested.

I am basing that comment on a Tak FS152 with a 2.7 inch focuser. I tried various flatteners etc and got very bad vignetting.

I ended up upgrading its focuser to 4 inch and it was all good.

Someone posted they had success with a TOA130 and 2.7 inch focuser so perhaps it was a better flattener than the one I used.

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