Achromatic Refractor telescope on AZ3 alt-azimuth mount. Excellent for terrestrial viewing or astronomy. Includes multi-coated objective lens, aluminium tube, dew cap / sunshade. Has 36% more light gathering power than 60mm telescope. The long focal length allows high magnification. The perfect scope for observing across land or sea, or for the beginning amateur astronomer. Perfect for lunar viewing.
|
Optical Design Lens Material
|
Achromatic Refractor
|
| |
|
|
Diameter
|
70mm
|
|
Focal Length
|
900mm
|
|
Scondary Mirror Diameter
|
n/a
|
|
F/ratio
|
F/10
|
|
Highest Practical Power
|
180x
|
|
Faintest Steller Magnitude
|
12.5
|
|
Resoving Power
|
1.3
|
|
Finderscope
|
6x30*
|
|
Focuser diameter
|
1.25”
|
|
Diagonal
|
45º Erect Image*
|
|
Eyepiece(s)
|
1.25” Super 25 and 10*
|
|
Mount Type
|
Alt-Azimuth
|
|
Slow-motion Control
|
Vertical & Horizontal
|
|
Counterweight(s)
|
n/a
|
|
Piggyback Bracket
|
Yes
|
|
Accessory Tray
|
Wall-to-wall
|
|
Ground Board Diameter
|
n/a
|
|
Ground Board Weight(s)
|
n/a
|
|
Motor Drive
|
n/a
|
|
Go-to
|
n/a
|
|
Tube Weight
|
2.49Kgs
|
|
Tube Dimension(dia. x length)
|
9cm x 86.5cm
|
|
Tripod Height
|
71-123cm
|
|
Shipping Weight
|
12Kgs
|
|
Shipping Carton Dimensions
|
103.5 x 45 x 25 cm3
|
|
Telescopes $99 to $300
