The Celestron AstroMaster 70AZ is a refractor telescope with a 70mm aperture and in mounted on an altazimuth mount. It’s an entry level telescope that has several nice features that make it a great option for the beginner astronomer.
The package contains the optical tube, the steel tube legs tripod with the accesory tray, the altazimuth mount, 2 eyepieces (20mm and 10mm), the finderscope, the correct image prism and a copy of the SkyX software.
- Manufacturer - 9.9/109.9/10
- Optics - 9.5/109.5/10
- Value - 9.6/109.6/10
It’s main features would be that it has permanently mounted star pointer and erect image optics which makes it useable for terrestrial viewing as well. But I would argue that the star pointer is not nearly as helpful as a finder scope.
One strong point in favor of the 70AZ Astro Master and the Astron Master telescopes in general is the better built mount and tripod. You have less vibrations with the Astro Master telescopes than with the ones from the Power Seeker range.
Full technical specifications:
Optical Design: Refractor
Aperture (mm): 70 mm (2.76 in)
Focal Length: 900 mm (35 in)
Focal Ratio: 13
Focal Length of Eyepiece 1 (mm): 20 mm (0.79 in)
Magnification of Eyepiece 1: 45 x
Focal Length of Eyepiece 2 (mm): 10 mm (0.39 in)
Magnification of Eyepiece 2: 90 x
Finderscope: Built-on StarPointer
Star Diagonal: Erect Image Diagonal – 1.25″
Mount Type: Altazimuth
Tripod: 1.25″ steel tube legs
Highest Useful Magnification: 165 x
Lowest Useful Magnification: 10 x
Limiting Stellar Magnitude: 11.7
Resolution (Rayleigh): 1.99 arc seconds
Resolution (Dawes): 1.66 arc seconds
Light Gathering Power (Compared to human eye): 100 x
Apparent Field of View: 1.1 °
Linear Field of View (@1000 yds): 58 ft (18 m)
Optical Coatings: Fully Coated
Optical Tube Length: 36 in (914 mm)