Thread: minus violet filters
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Old 07-04-2016, 09:11 PM
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doppler (Rick)
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Join Date: Nov 2012
Location: Mackay
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Here's what a LP blocking filter does with CA in a 120mm f5 achro. Still not cheap but I had one in my box of bits. A purpose made filter would have to be even better.
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Last edited by doppler; 08-04-2016 at 07:56 AM.
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