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Old 09-06-2009, 12:53 PM
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toryglen-boy (Duncan)
Scotland to Australia

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Quote:
Originally Posted by Robh View Post
Is it worth buying the Baader MPCC for visual observations in a low power eyepiece i.e. does it reduce outer perimeter coma noticeable?

Rob
Hi Rob

Yeah, its worth it. I use it on a 12" dob, and it makes quite a difference with lower power, wide field eye pieces, although the only two points i would make are.

1. its a pain in the niagras to get the spacings right, and getting used to it can be like working out a Chinese logic puzzle.

2. Its best used with really good quality eyepieces, as quite alot of the bad viewing can be caused by defects in eyepiece itself, and not really down to coma. that said, its a handy piece of kit, and with me getting into imaging, and eyeing up a 20" F4 dob, its gonna be an even handier thing to have around.

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