Thread: Any amateur mirror makers still alive in Oz/Nz?
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Old 11-01-2017, 10:12 AM
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dave brock
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dave brock is offline 		 
Join Date: Dec 2011
Location: hamilton nz
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Quote:
Originally Posted by nobby2 View Post
On my mirror focal length 1200mm/47.244", f/5.9 making ROC at 94.49 inches.
The focal length of your mirror may not be exactly 1200mm. That is often a rounded off figure.

Dave
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