Lumicon 2" diameter × 1.5" length — Drop-In Eyepiece Extension Tube Visual Adapter The front of your telescope

The front of your telescope radiates heat directly into the cold night sky

Thread-in — threads into a 2" eyepiece

bolt them to this bar and you've built the same two-telescope rig for a fraction of the cost

You can see the increase in contrast in the sequence of equal-exposure images of the Crescent Nebula (NGC 6888) taken on the same system and on the same night

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Lumicon 2" diameter × 1.5" length — Drop-In Eyepiece Extension Tube Visual Adapter The front of your telescopeLumicon 2" Drop In Extension Adds 1. 5" of back focus so your eyepiece or camera can reach sharp focus. The Lumicon 2" diameter 1. 5" length Drop In Eyepiece Extension Tube drops into a 2" focuser or diagonal and accepts a 2" eyepiece on top, pushing the eyepiece back by roughly 1. 5". The larger 2" clear aperture suits wide field eyepieces and large sensor imaging, where it reduces vignetting compared with a 1. 25" light path. Specifications Barrel