Price history: It's been cheaper during previous Prime Day and Black Friday events, but this price of $679 is the best we've ...

Save $100 on this 5-inch telescope and enjoy views of Saturn's rings, the belts of Jupiter and bright deep space objects like ...

I have an Edmund Scientific Astroscan, 4-1/8-inch aperture, F/4.2 reflecting telescope, used with a 2.5x Barlow lens and a 28mm Plossl eyepiece. Pete Condon, Girard, Ohio ...

A 2-inch telescope will have a primary or “objective” lens with an aperture of about 3 square inches. The lens in a 4-inch telescope has a much larger 12-square-inch light collecting area.

And, yes, I’m infected. I started many years ago with a 2.4-inch telescope of good quality. I now own a 4-inch refractor and an 8-inch Schmidt-Cassegrain. Am I happy? Yes.