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Hi Ken
I would advise anything you can pick up in a Vixen 6mm as the Japanese are mad refractor fans and made for the home market and at the short fl correct light scatter very well ,Televue are made for big dobs hence correction down to f4 or so being important ,Tak abbe ortho 6mm has horrendous er and to me was unusable that's just what i have found on the numerous ep's i have used and narrowed my viewing ep's mono down to 3
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