Lumicon 2" diameter × 1" length — Drop-In Eyepiece Extension Tube Counterweight Requirements

Requirements

Available on GitHub

Will it work with my Dobsonian or a Sky Trekker / Triangle Style bar

"text": "Older pre-2008 Celestron 9

Lumicon 2" diameter × 1" length — Drop-In Eyepiece Extension Tube Counterweight RequirementsLumicon 2" Drop In Extension Adds 1" of back focus so your eyepiece or camera can reach sharp focus. The Lumicon 2" diameter 1" 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". 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 diameter