Product Overview
Celestron's Omni XLT 102 - 4" Refractor Telescope with German Equatorial mount features:
- High quality optics starting with each lens and/or mirror being hand-selected so only the finest grade of optical glass is used
- StarBright XLT coatings provide maximized light transmission
- 25 mm multi-coated eyepiece - 20 mm eye relief, 50° FOV
- 1.25" star diagonal
- CG-4 German Equatorial mount with setting circles and slow motion controls - to accurately locate and track sky objects
- Ball bearings in both axis of the mount for smooth performance
- Heavy-duty pre-assembled stainless steel tripod featuring 1.75" legs, accessory tray and bubble level
- Easy no-tool setup
Omni XLT series features the stable platform of the CG-4 mount and high quality optics. Using aspheric shaping technology in conjunction with hand-figuring the optics the Omni XLT presents an image with virtually no spherical aberration. We also added our famous StarBright XLT coating system to further enhance light transmission.
| Optical Design | Refractor |
| Aperture (mm) | 102 mm (4.02 in) |
| Focal Length | 1000 mm (39 in) |
| Focal Ratio | 9.8 |
| Focal Length of Eyepiece 1 (mm) | 25 mm (0.98 in) |
| Magnification of Eyepiece 1 | 40 x |
| Finderscope | 6x30 |
| Mount Type | Omni CG-4 Equatorial |
| Tripod Leg Diameter | 1.75" Stainless |
| Highest Useful Magnification | 241 x |
| Lowest Useful Magnification | 15 x |
| Limiting Stellar Magnitude | 12.5 |
| Resolution (Rayleigh) | 1.37 arc seconds |
| Resolution (Dawes) | 1.14 arc seconds |
| Light Gathering Power (Compared to human eye) | 212 x |
| Apparent Field of View | 1.25 ° |
| Linear Field of View (@1000 yds) | 66 ft (20 m) |
| Optical Coatings | StarBright XLT |
| Optical Tube Length | 39.5 in (1003 mm) |
| Optical Tube Weight | 9.5 lbs (4.31 kg) |
| Tripod Weight | 12.5 lbs (5.67 kg) |
| Weight of Counterweights | 7 lbs (3.2 kg) and 4 lbs (1.8 kg) |
| Warranty | 2-year Telescope Warranty |
