I hope this is the correct forum. The problem is I want to convert to a equatorial mount for astro-photography. My tube is made of heavy 3/16" fiberglass. Since my tube assembly weight is 49 lbs I need a equatorial mount in the $800 price or higher range. Too much for me. So I am looking at shedding tube weight. If I can get the weight down I can buy a less expensive mount.
Three options come to mind; 1. reducing the tube length by 12". 2. converting to sonotube. 3. converting to truss design. I doubt removing 12" of tube length will give the weight reduction I want. So which weights less: a sonotube or truss of equal length?
See attached photo.
Edited by beertracker, 06 August 2020 - 07:24 PM.