Thread: 45mm diam x 400 EFL achromatic lens
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Old 23-02-2020, 06:00 PM
Saturnine (Jeff)
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Join Date: Jul 2008
Location: Wollongong
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Sorry , you did say achromat

Or this one maybe. 45mm is a bit of an odd dia.

https://www.surplusshed.com/pages/item/L14784.html
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