Optical Design |
ED Apochromatic Refractor |
Aperture |
81mm |
Focal Length |
625mm |
Focal Ratio |
f/7.7 |
Coating |
Multi Coating |
Resolving Power |
1.43 arc sec |
Limiting Magnitude |
11.3 |
Light Gathering Power |
134x |
Focuser |
Dual Speed |
Adapter Thread |
60mm/50.8mm |
Astrophotography |
Prime Focus, Eyepiece Projection & Afocal Imaging |
Visual Back |
Compression Ring |
Optical Tube Length |
23” (585mm) |
Optical Tube Diameter |
3.5” (90mm) |
Optical Tube Weight |
5.1lb |
Mount |
GP2 Equatorial Mount |
Tripod |
HAL130 Tripod |
Tripod Weight |
12 lb |
Mount Weight |
9 lb |
Counterweights |
8.15 lb (3.7kg) |
Hand Controller |
Optional |
Load Capacity |
20 lbs |
Power Requirements |
None |
RA Slow Motion Axis |
144tooth wheel gear – whole circle movement |
DEC Slow Motion Axis |
144 tooth wheel gear – whole circle movement |
RA Graduations |
Optional (Included in Polar axis scope) |
DEC Coordinate Display |
Optional (Included in Polar axis scope) |
Polar Axis Scope |
Optional |
Altitude Adjustment |
0 to 62 ° (2° increments) |
Azimuth Adjustment |
Double screw fine adjustment |
Motors Drive |
Optional |
Accessories |
XY Dot Finder; Dovetail Plate; Carry Handle; NLV25mm Eyepiece |
