| Optical Design |
Refractor |
| Aperture |
102mm (4.01") |
| Focal Length |
660mm (25.98") |
| Focal Ratio |
f/6.5 |
| Focal Length of Eyepiece 1 |
25mm (0.98") |
| Magnification of Eyepiece 1 |
26x |
| Focal Length of Eyepiece 2 |
10mm (0.39") |
| Magnification of Eyepiece 2 |
66x |
| Barlow Lens |
None |
| Finderscope |
StarPointer™ red dot finderscope |
| Star Diagonal |
Erect image 90° (1.25") |
| Optical Tube |
Aluminum |
| Highest Useful Magnification |
240x |
| Lowest Useful Magnification |
15x |
| Limiting Stellar Magnitude |
12.5 |
| Resolution (Rayleigh) |
1.37 arc seconds |
| Resolution (Dawes) |
1.14 arc seconds |
| Light Gathering Power (Compared to human eye) |
212x |
| Optical Coatings |
Fully XLT Coated glass optics |
| Optical Tube Length |
812.8mm (32") |
| Optical Tube Diameter |
118mm (4.64") |
| Optical Tube Weight |
5 lbs (2.26 kg) |
| Dovetail |
CG-5 Dovetail Bar |