Thread: Making a 20" Gregorian.
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  #45  
Old 05-08-2018, 07:44 PM
Billyboy78 (Bill)
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Billyboy78 is offline 		 
Join Date: May 2018
Location: CRESTMEAD Brisbane
Posts: 103
#220 done. Did a FL test using my slitted led light source. Turns out we are a bit short, 1600mm instead of 1785mm target. F 3.2 but I'm not fussed, I don't want to mess up this figure
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