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Which Barlow for PST?

Started by mdedon, 09/15/2004 07:15PM
Posted 09/15/2004 07:15PM Opening Post
My TV 1.8x barlow will not come to focus in my PST. Any suggestions that work for you. I expect the CEMAX works fine but not many used ones on the market that I've seen.
Posted 09/15/2004 07:49PM #1
Mike -

I used a Klee 2.8x with the 12.5K that came with the PST ~ 90x. No problem reaching focus, however some detail was lost.

Jason
Posted 09/16/2004 01:58AM #2
I have tried the Cemax 2x, Antares 3 element 2x, Celestron Ultima 2x and the Orion Shorty Plus 2x barlows all with no problems reaching focus. I think the key here is that they are all shorty style barlows. Full size barlows, like the Meade 140 2x or the Televue 2x may work but I don't have either one of those to test.