So still getting to know my TS-65 f/15.3 refractor. Wicked sharp views. Great first impression.
Tonight I was using Hyperions zooms with my Borg in binoviewers and a new Meade 4K zoom in the Tak. I have a WO correct image diagonal on the Tak. Nice views of Jupiter and Saturn, but I found that when I tried to zoom in on the Tak, it didn’t have enough in-focus for the higher mags. At 24mm, I could reach focus, but at some point I couldn’t focus as I adjusted the zoom.
So I decided to grab some Orthos instead… The 12.5mm Tak Ortho was excellent. But the 7mm Celestron Ortho also couldn’t reach focus! I switched to a shorter tube on the Borg, and being so modular, it’s easy to adjust for all circumstances. But the 1973 Tak… What to do?
I could skip the diagonal to get that in-focus back, but I enjoy the correct image view. And the angle with the diagonal.
Question for folks… Is there a component I can add to reduce that in-focus requirement?
Has anyone modified an old tube like this to add a draw-tube or reduce the tube length?