Thread: Backfocus measurements - refractors
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Old 13-09-2017, 01:07 PM
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Slawomir (Suavi)
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I believe that dslr is fine, as long as we know pixel size?

Thank you for keeping us updated John.

EDIT: Here is a link to a similar discussion on CN: https://www.cloudynights.com/topic/5...-focal-length/
Last edited by Slawomir; 13-09-2017 at 04:10 PM.
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