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Celestron C90 Maksutov-Cassegrain Telescope complete with 32mm Plossl eyepiece The Maksutov optical design is recognized for being a portable design that is easy to use and has a variety of applications, making it an excellent choice for both terrestrial and astronomical usage where medium to high magnifications are required. This C90 Mak has excellent optics with razor sharp images over a wide field, and has zero chromatic aberation (false colours).
The C90 Mak features an internal flip mirror design which allows the user to view celestial objects at a 90 degree angle and also corrects the image orientation to view land objects at a 45 degree angle. The full-featured C90 MAK is also rubber covered and completely waterproof. This model features durable black rubber armor for protection, a flip up lens cap for safety, and it comes complete inside its own soft sided carrying case.
General Details:
- 3.5" Maksutov-Cassegrain Spotting Scope - Multi-Coated optics - Internal flip mirror system for terrestrial and astronomical use - 20mm and 10 mm Super Plossl Eyepiece - 45° Erect Image Diagonal - 8x21 Finderscope - Waterproof - Rubber armored protective covering for secure grip - Water-Resistant soft-sided case
Technical Information:
OPTICAL DESIGN: Maksutov APERTURE: 90 mm (3.54 in) FOCAL LENGTH: 1200 mm (47.24 in) FOCAL RATIO: 13.33 FINDERSCOPE: 8x21 ANGLE: 0 or 45 ° EYEPIECES: 20 mm and 10 mm Super Plossl MAGNIFICATION: 60x and 20x CARRYING CASE: Foam Case ANGULAR FIELD OF VIEW: 1.4 ° LINEAR FIELD OF VIEW (@1000 YDS): 73 ft (22.25 m) EYE RELIEF: 22 mm (0.87 in) NEAR FOCUS (BINOCULARS): 20 ft (6.1 m) OPTICAL COATINGS: Multi-Coated TRIPOD ADAPTABLE: Yes CAMERA ADAPTABLE: Optional T-Adapter OPTICAL TUBE LENGTH: 11 in (279.4 mm) WEIGHT: 1417 g

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