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Posted by William Hurless on November 26, 2001 06:45:42 UTC

Ok I get it, the 2x barlow lens doubles the eyepiece power, so 30mm becomes 15mm

so I should get some thing a little lower than
15mm or a little higher than 30mm

What about a 40mm and a 15mm
with the 2x barlow lens thats 20mm and 7.5mm

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