Thread: upgrade to longer focal length?
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Old 02-01-2016, 04:49 PM
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jenchris (Jennifer)
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jenchris is offline 		 
Join Date: Nov 2010
Location: Ormeau Gold Coast
Posts: 2,067
750 by 1000? Wow that is some piece of mirror.......
What about that with a field flattener.
You can always drop your FR by using a Barlow x2
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