|
|
|
|
 |
|
|
|
|
| 20" F/8 Lightweight RC |
Features
Optical design: Ritchey-Chretien
Optical diameter: 500mm
Focal length: 4000mm
Focal ratio: F/8
Optics type: Hyperbolic mirror
Optics Material: Low thermal expansion quartz mirrors
Highest theoretical magnification: 900x
Focuser: 3" dual-speed Linear Bearing Crayford EAF compatible
Mirror Separation: 1118mm
Back Working Distance: 400mm
Astro-imaging capability: Lunar, planetary & long exposure
Dovetail plate: D type
Tube material: Aluminum & Carbon
Baffle: new Multiple knife-edge baffle system
Package includes
(RC20B) 20" RC OTA only
Three built-in cooling fans, with battery holder
1.25" Eyepieces adapter
2x25mm, 1x 50mm focus extension tube
|
|
|
| |
|
| Copyright (c) 2024 Guan Sheng Optical Co.,Ltd. |
|
No. 225, Wuhe St, Qionglin, Hsinchu County, Taiwan, R.O.C service@gsotelescope.com
TEL:886-3-593-6688 FAX:886-3-593-6655 |
|
|
