One thing I can say from experience is that a powermate will work well with TV plossls whereas other barlows will not. Both my Klee and Celestron Ultima barlows cause vignetting in these eyepieces, but the 2.5x powermate I have doesn't. I will leave it to someone else to explain why.
Re: what's the difference?
Started by mte1955, 03/24/2008 06:36PM
Posted 03/24/2008 06:36PM
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