Are you using a barlow, or are you taking the lens off the barlow and screwing it into the end of the 1 1/4" EP adapter like a filter?
I had no luck with a barlow as is, but I think I could achieve focus with the lens screwed into the adapter. I was still strugling with focus, but I'm sure it was much better, and I think my main problem was simply the rapid drift across the FOV as I was using a fixed tripod. Now that I have an adapter to fit my PST onto my CG5 I'll be able to give oit a proper go (when I get my PST back...).
Al.
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