I am not a big fan of barlows. Mainly fiddly in the dark, but also I find most times if I want more power I don't really need 2x. Moving from a 17mm to a 13 or 10mm is usually all I need. Also I have never seen a better view in a barlowed EP than I could get with a high quality stand alone, and I have only ever used TV ones. Had a TV 2x and a TV 2.5x Powermate and ended up selling both of 'em.
Malcolm
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