本帖最后由 业务小崔 于 2009-8-12 00:42 编辑
重磅出击,最优秀的马卡镜INTES-MICRO ALTER M703!仅限一台!
此品为二手珍藏品,忍痛割爱的!
原价£1799,现在仅售RMB9800
成色很新,配件齐全,欢迎来电咨询!
同时支持银行汇款(请在与我们联系后汇款) INTES-MICRO ALTER M703 Telescope
Product code:TI430
Manufacturer:Intes-Micro | 7" F/10 Maksutov-Cassegrain optical system with moving primary focusing. Optical quality to minimum 1/6th wave front error. Meniscus lens is multi-coated. Internal knife-edge baffle rings. Passive cooling system around meniscus. Rear mounted cooling fan with variable speed controller. Rear cell is fitted with 2" threaded opening to accept any SCT accessory. Cream-white painted tube. Accepts both Intes-Micro and STF (Mirage) telecompressors of 0.8x, 0.6x and 0.45x.
Excellent for serious imaging and visual use as well as an excellent photographic tool.
Specifications: - Clear Aperture - 178 mm
- Focal length - 1780+100 mm
- Focal ratio - F/10
- Back Focus - 30 - 250 mm
- Photographic field of View - 1020'
- Tube diameter - 220 mm
- Tube length - 495 mm
- Tube weight - 5.7 kg
- Max. useful magnification - 2x per mm aperture
- Reflectitivity of mirrors - 95%
- Central obstruction - 32%
- 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 SiO2protected
Delivery Set: Optical Tube Assembly, 10x50 finder with Finder Bracket, Piggy-back camera mount, 2" 1/10th wavefront surface star diagonal (SCT fit), 1.25" 2.4x Barlow lens, 1.25" 12 mm or 21 mm Erfle eyepiece, soft carrying case.
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