National Geographic 90/1250
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| Brand: | National Geographic |
| Equipment: | Telescope, red dot finder, 20 mm and 12.5 mm eyepieces, compass, moon filter, planisphere, planetarium software, instruction manual and warranty card |
| Description: | Mirror-lens |
| Type: | Mirror-lens |
| Installation: | Floor |
| Lens diameter: | 90 mm |
| Lens focal length: | 1250 mm |
| Automatic guidance: | There is |
| Seeker: | With red dot |
| Tripod material: | Aluminum |
| Tracking mechanism: | There is |
| Mount: | Azimuth |
| Number of eyepieces included: | 2 |
| Max. magnification with included eyepiece: | 100x |
| Optical design: | Maksutov-Cassegrain |
| Relative hole: | 1:13.9 |
| Useful magnification: | 15x-180x |