Non rotating helical focuser with M42 connection
prusaprinters
Non rotating helical focuser for a precise focus which can easily be attached to your telescope, or a precise variable extension for photography and visual observing.The orientation of the camera is maintened during the focusingTelescope/accessory side connetion : M42 FEyepiece/camera side connection : M42 MTravel : 10 mm /Precise focusing ~ 1 mm/tour/!\ It is necessary to run the screwed parts and coat them with a little Teflon grease before assembly.
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