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Troy, sadly the optical quality of the bintel barlow wasn't up to the job, not really a surprise given its price... The potential payoff was a 3-element barlow instead of my 4-element powermate, and also the bintel 5x barlow was physically a bit shorter which was nice, but the only thing letting it down was the optics :-(
I'm still on the lookout for a 3-element 5x barlow but they seem hard to find.
cheers, Bird
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