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What is your favourite barlow?
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12-01-2021, 05:54 PM
bojan
amateur
Join Date: Jul 2006
Location: Mt Waverley, VIC
Posts: 6,943
I used Zenit 2x
teleconverter
for Mars and Moon... not a trace of CA.
It could be boosted beyond 2x with M42 extenders...
bojan
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