AstroMaster 90EQ - General Features

* Quick and easy no-tool setup
* Permanently mounted StarPointer
* Erect image optics - Ideal for terrestrial and astronomical use
* Quick release dovetail attachment - no tool setup
* German Equatorial mount with Setting circles - to accurately locate and track sky objects
* Rugged pre-assembled tripod with 1.25" steel tube legs - Provides a rigid and stable platform
* All coated glass optics for clear, crisp images
* Deluxe accessory tray for convenient storage of accessories
* " The Sky® " Level 1 planetarium software with 10, 000 object database and enhanced images

Optical Design : Refractor
Aperture : 90 mm ( 3.54 in)
Focal Length : 1000 mm ( 39.37 in)
Focal Ratio : 11.11
Eyepiece 1 : 20 mm ( 0.79 in)
Magnification 1 : 50 x
Eyepiece 2 : 10 mm ( 0.39 in)
Magnification 2 : 100 x
Mount : CG-3 Equatorial
Optical Coatings : Multi Coated
Weight : 27 lbs ( 12.25 kg)
Finderscope : Built-on StarPointer
Tube Attachment : Dovetail Bar
Star Diagonal : Erect Image Diagonal - 1.25"
Tripod : 1.25" steel tube legs
CD ROM : The Sky L1
Highest Useful Magnification : 213 x
Limiting Stellar Magnitude : 12.3
Resolution ( Rayleigh) : 1.55 arcsec
Resolution ( Dawes) : 1.29 arcsec
Light Gathering Power : 165 x
Angular Field of View : 1 °
Linear Field of View ( @ 1000 yds) : 53 ft ( 16.15 m)
Optical Tube Length : 36 in ( 914.4 mm)