11/16/18What is a waterproof spotting scope?
03/20/18My Celestron Ultima and Regal spotting scopes have threads in front of the objectives. What size photo filters do they use?
08/02/10I’m using a spotting scope and/or astronomical scope for photography. What is the equivalent photographic magnification or zoom power of my set-up?
11/23/09What eyepieces will work best with my Regal F-ED spotting scope? Will all eyepieces focus with the scope?