Quote: Sure the scope isn't necessary but in a way it's more comfy to watch the mirror. Without the scope u have to keep your head pretty steady to get a stable image of the shadows.
I use a small scope too, and for me I find it much more comfortable. A little magnification is nice too for long FL mirrors. I made a little scope that I can change the EP in to adjust magnification, generally I use 2.5x magnification (25mm EP).
I'm not sure if it helps or hinders the accuracy of the test though.
-------------------- Ryan
Antares 200mm f/6 Dob & 130mm f/5 Travel Dob.
Projects on the go...
- a couple 80mm SS refractors on the back burner.
- a few small mirrors awaiting polishing
- 260mm f/7.15 mirror... still polishing