Thread: Unusual f/1.25 refractor
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  #10  
Old 11-12-2016, 06:09 PM
Stefan Buda
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Stefan Buda is offline 		 
Join Date: Jul 2013
Location: Melbourne, VIC
Posts: 988
It all comes down to those damn numbers..
You look at a star through this contraption, with dark adapted eyes and 32mm eyepiece, and 5.3% of the light will fit through your 6mm iris. Why would you bother?
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