Thread: two 2 x barlows = one 4 x barlow?
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Old 12-09-2013, 05:19 PM
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Merlin66 (Ken)
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Join Date: Oct 2005
Location: Junortoun Vic
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Basically yes.
You can get the same amplification ( ie x2 to x4) by doubling the distance (spacer?) behind the barlow.
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