Thread: power mate or no
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Old 20-11-2019, 08:06 PM
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Merlin66 (Ken)
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Merlin66 is offline 		 
Join Date: Oct 2005
Location: Junortoun Vic
Posts: 8,907
Darren,
Varying the back focus distance doesn’t change the magnification when using a telecentric design.
Sure it works for a Barlow......
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