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ArcticMyst Security by Avery

my sharp GH04850B2G (the chameleon light)

kecked

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Joined
Jun 18, 2012
Messages
952
Points
63
Has anyone tried making a miniature actual spatial filter for these handhelds. Not just a mask but an actual two lens and pinhole setup? I have trouble with anything less than 100mm FL so it would be a real feat if you can do it.
 





Joined
Sep 20, 2013
Messages
17,438
Points
113
Spatial filters needn't have two lenses. It's is just that some use microscope objectives that some do. A single focusing lens with an adjustable pinhole in three dimensions has worked for me in the past.
 




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