7" F/15 Maksutov-Cassegrain optical system with moving primary mirror focusing. Small and portable but at the same time have large enough aperture for deep-sky observing and are excellent lunar and planetary instruments. Can accept both Intes-Micro telecompressors and STF (Mirage) compressors of 0.8x, 0.6x and 0.45x.
Specifications:- Clear Aperture - 178 mm
- Focal length - 2670 + 100 mm
- Focal ratio - F/15
- Back Focus - 15 - 290 mm
- Photographic field of View - 00 54'
- Tube diameter - 220 mm
- Tube length - 555 mm
- Tube weight - 6.0 kg
- Max. useful magnification - 2x per mm aperture
- Reflectitivity of mirrors - 95%
- Central obstruction - 27%
- Optical quality (for wave length 0.63 μm) - Minimum 1/6th wavefront error
- RMS - 0.041
- Body parts material - aluminium
- Primary and secondary mirrors material - LK7, LK5 (Pyrex) with reflective aluminium coating and SiO2 protected
Delivery Set: Optical Tube Assembly, soft carrying case.
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