Sky-Watcher Black Diamond 90mm Refractor Telescope with AZ3 Mount
This high quality 90mm altazimuth refractor telescope is an excellent choice for the more serious beginning astronomer or terrestrial observer. It's a powerful optical instrument with 213x the light gathering capability versus the naked eye and the objective lens is designed to yield the finest images available in its class.
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| 672N053 | |
| Optical Design | Achromatic Refractor |
| Diameter | 90mm |
| Focal Length | 900mm |
| F/ratio | f/10 |
| Highest Practical Power | 180x |
| Fainest Stellar Magnitude | 12.5 |
| Resolving Power (Arc Sec) | 1.3 |
| Finderscope | 6x30 |
| Diagonal | 45° |
| Focuser Diameters | 1.25" |
| Slow-motion Control | RA & DEC |
| Piggyback Bracket | Yes |
| Accessory Tray | Large |
| Tripod | Aluminum |
| Motor Drive | Single Axis (Optional) |
| Tube Dimensions | 9cm x 91cm |
| Tripod Height | 71-123cm |
| Total Weight | 11.7kg |
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