SKY-WATCHER 80mm User Manual

Model 80 mm 100 mm 120 mm
SKU
S1110 0 S1112 0 S1113 0
UPC
0 5 02 3 41110 0 3 0 5 02 3 41112 01 0 5 02 3 41113 0 0
Optical design
Apochromatic refractor
Focal length
600 mm 900 mm 900 mm
F-ratio
7.5 9 7.5
Lens elements
2
Lens glass
FPL-53 ED and Schott BK-7 glass
Focuser
2 inch dual-speed Crayford-style
Eyepieces
5 mm and 20 mm 1.25 inch eyepieces
Finderscope
8 x 50 right angle, correct image
Highest useful magnification
189x 236x 283x
Lowest useful magnification
11x 14x 17x
Limiting stellar magnitude
12 12.5 12.9
Resolution (Rayleigh)
1.74 arc seconds 1.39 arc seconds 1.16 arc seconds
Resolution (Dawes)
1.45 arc seconds 1.16 arc seconds 0.97 arc seconds
Light gathering power
(compared to human eye)
131x 204x 294x
Mount type
V-style dovetail
Tube length (inches)
23.8 36.2 37.8
Outer diameter (inches)
4.5625 4.5625 5.625
Tube weight (pounds)
7.3 8.4 13.9
Specifications
Dew shield
Optical tube
Tube rings
Finderscope
Finderscope
adjustment screws
Finderscope
tension screw
1/4”-20
camera adapter
V-style mounting plate
Eyepiece
1.25” adapter
Dielectric diagonal Dual-speed
Crayford-style focuser
Tube ring
locking clamp
(not shown)

SKY-WATCHER 80mm Specifications

General

Brand	SKY-WATCHER
Model	80mm
Category	Telescope
Language	English