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Aperture: 70mm; focal length: 900mm; focal ratio: 13
Focal length of eyepiece 1/2: 20mm/10mm; magnification of eyepiece 1/2: 45x/90x
Finder scope: built-on star pointer; Star diagonal: erect image diagonal - 1.25 inch
Mount type: cg-2 equatorial; limiting stellar magnitude: 11.7
Highest/lowest useful magnification: 165x/10x; light gathering power: 100x
The astromaster 70eq telescope uses all coated glass optics and Newtonian reflectors to produce bright, clear images of the Moon and planets. It is quick and easy to set up and features a permanently mounted star pointer. Provides erect image optics that are Great for terrestrial and astronomical use. This telescope also comes outfitted with a quick release dovetail attachment and a German equatorial mount with setting circle to help you accurately locate and track sky objects. The rugged, pre-assembled tripod offers 1.25 inch steel tube legs for a rigid and stable platform. Also included is a deluxe accessory tray and theskyx-first light edition astronomy software with a 10,000 object database, printable sky maps, and 75 enhanced images.
Celestron’s AstroMaster 70 EQ combines the solid optical performance of a classic achromatic refractor with a German style equatorial mount. The Astromaster 70 features easy no-tool setup and much better optics than 60mm beginner scopes. The Astromaster package includes high and low power eyepieces, a correct image diagonal prism, illustrated instructions, and planetarium software for your PC.
The AstroMaster 70 EQ features very good optical performance. Achromatic refractors have a two piece objective lens, the second lens element compensates for “chromatic aberration”, the false color or blue fringes seen in low cost telescopes. In daylight tests I see very little blue fringing with the standard equipment 10mm eyepiece (90X magnification), and none at all with the 20mm eyepiece (45X). Stars and planets show up very nicely with the AstroMaster 70. The bright double star Castor, one of the “twins” in the constellation Gemini, is cleanly split at 90X with the 10mm eyepiece. When I tried an optional 6mm Plossl eyepiece for a magnification of 150X, I was treated to lovely views of Saturn’s rings and the little orange disk of Mars. My view of the Moon was delightfully crisp and clear; the 20mm eyepiece nicely frames the Lunar disk, and using the 10mm eyepiece I could easily see mountain peaks and terraced walls inside the crater Copernicus.
The AstroMaster 70 EQ also features a newly designed tripod with 1.25 inch stainless steel legs. This new tripod holds the telescope firmly; I had no trouble focusing even with a high power eyepiece. The equatorial mount is a little more complicated to balance and align than the AstroMaster 70 AZ , but the reward is better slow motion control and tracking at magnifications over 100X. Simply point the equatorial axis at Polaris, the North Star, and the telescope tracks celestial objects by turning one slow motion knob. This makes it much easier to use a high power eyepiece while viewing the Moon and Planets. The “star pointer” finder scope works by shining a red LED on a plastic window; just look through the window and line up the red spot with your target. This works OK for bright objects like the Moon and planets but not so well for finding galaxies and deep space objects.
The AstroMaster 70 EQ is a very good entry level telescope for a student or family. The good quality 70mm optics produce an image that is significantly sharper and brighter than 60mm beginner scopes, and the AstroMaster 70 EQ includes a solid mount, two good eyepieces, and fully illustrated instructions. --Jeff Phillips
- Reliable refractor design
- Good views of the Moon and planets
- Complete accessory package
- Simple no tool setup
- Star-pointer not so easy to use
Celestron 21062 AstroMaster 70 EQ Refractor Telescope - B000MLL6QE