Thingiverse
Focus Lock and micro adjuster
por Strudler
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A bumped focus ring ruined too many astrophotography exposures so I created this-slip on lock and micro adjuster for the Canon 200mm F2.8 L USM II lens.
It really works. I tested it taking that image of Comet Catalina.
I left some room for velcro loops to pad the lens barrel.
You also need 1/4 20 threaded rod, two lock nuts and a furniture slot nut.
It really works. I tested it taking that image of Comet Catalina.
I left some room for velcro loops to pad the lens barrel.
You also need 1/4 20 threaded rod, two lock nuts and a furniture slot nut.
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