ETX TECHNICAL TIPS Last updated: 8 November 1998

Eyepiece Holder Cover

Many users have recommended that plastic 35mm film cans make perfect covers to slide into an empty eyepiece holder to keep dust and other debris from entering the ETX Optical Tube Assembly (OTA). One word of caution when using plastic (or metal) cans: do not tighten the set screw down so far as to screw into the can as this may create debris which will go directly into the OTA.

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