You’d be surprised by the finder scopes
available to today’s amateur astronomers. The typical model is an optical finder scope — essentially, it’s a miniature wide-field telescope. The numbers 6×30 signify its magnifying power (6x) and aperture (30mm) and are adequate size to use with a small refractor. For my 13-inch Dobsonian, I use a larger 8×50 finder.
available to today’s amateur astronomers. The typical model is an optical finder scope — essentially, it’s a miniature wide-field telescope. The numbers 6×30 signify its magnifying power (6x) and aperture (30mm) and are adequate size to use with a small refractor. For my 13-inch Dobsonian, I use a larger 8×50 finder.