The Celestron StarSense Explorer 8-inch Dobsonian telescope is big. All Dobsonians are, relative to other designs of telescope mounts, but at least its 8-inch aperture limits it to about 10kg each ...

The 8-inch aperture is enough to view and photograph all types of celestial objects, and the computerized equatorial mount makes it easy to find and track them. CELESTRON ADVANCED VX 8 EDGE HD KEY ...

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 ...

For example, if you put a 4-inch aperture mask on an 8-inch f/6 telescope, it becomes, in effect, a 4-inch f/12 telescope. Said another way, it’s a way to dramatically cut the light throughput ...

Schmidt-Cassegrain telescope designs are known for their impressive optical quality and the Celestron NexStar 8SE Computerized Telescope reinforces this stereotype. A big 8-inch aperture up front ...

Save $400 on one of the best telescopes — Celestron Advanced VX 8-inch EdgeHD is now 14% off at Adorama in this price drop before Amazon Prime Day.

Key features of the chunky Orion SkyView Pro 8 GoTo Reflector Telescope include a massive 203mm objective lens and generous 1000mm focal length, twinned with an f/4.9 aperture.

For example, if you put a 4-inch aperture mask on an 8-inch f/6 telescope, it becomes, in effect, a 4-inch f/12 telescope. Said another way, it's a way to dramatically cut the light throughput of ...

The AstroMaster A70 is a refracting telescope with a 70 millimeter (2.8-inch) aperture, 900 millimeter (35.4-inch) focal length, and your choice of magnification (either 45x or 90x) depending on ...

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.

At 43.4 lbs/19.68kg for the mount and the telescope tube combined the Celestron StarSense Explorer 8-inch Dobsonian isn't a particularly lightweight telescope to move around your garden, but it ...