Manok101 Posted October 13, 2010 Share Posted October 13, 2010 The two that are available on amazon are celestrons and televue.. I've read good things about televue in general, which do I get? Link to comment Share on other sites More sharing options...
John Posted October 13, 2010 Share Posted October 13, 2010 What scope will you be using the filter with ?.The Tele Vue OIII has a very broad band pass width for an OIII - it's more like a UHC filter I believe.The Celestron that I tried was a clone of the Baader OIII which is quite the opposite, and is a much more "aggressive" filter - fine if you have plenty of aperture to play with but not so good in smaller scopes.Castell and Skywatcher both do OIII filters which have had good reviews from those who have tried them. Link to comment Share on other sites More sharing options...
The Warthog Posted October 13, 2010 Share Posted October 13, 2010 Ya know, I read the title as "Oil Filter" causing me to say, 'What the hell?' Link to comment Share on other sites More sharing options...
Manok101 Posted October 13, 2010 Author Share Posted October 13, 2010 Sorry typing on the iPad.. It can create... Problems with the autocomplete, I've got a 4.5 inch reflector with a 1.25 eyepiece. Link to comment Share on other sites More sharing options...
John Posted October 13, 2010 Share Posted October 13, 2010 Sorry typing on the iPad.. It can create... Problems with the autocomplete, I've got a 4.5 inch reflector with a 1.25 eyepiece.I would be thinking UHC rather than OIII then. The Orion Ultrablock is pretty good. Link to comment Share on other sites More sharing options...
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