Help required please-Barlow and Oxy3
Hi folks,Have just bought a new LB12' and have a need for a Barlow ( mag not yet defined, so open to sugestions ). Anyone able to say which will come to focus? And which will not? I have a WO that will not!Also now realise an Oxy3 is needed. So the question is which 1.25" should I buy and of course, why?? Usual viewing of the Tarantula and Orion etc.Thanks all in advance for any help.
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