ThaiExcite
88/41 Kanlapapruek Road, Bangkae, Bangkae, 10160, Bangkok, ประเทศไทย
ติดต่อสอบถาม: 081-239-3299
อีเมล์: info@thaiexcite.com
URL: http://www.thaiexcite.com/SVBONY-SV106-Guide-Scope-50mm-with-Helical-Focuser-SVF9177A1-pr-2556.html
The SV198 50mm aperture guide scope with built-in dual helical focuser is known for its versatility and lightweight. These make SV198 a perfect tool for guiding, searching and spotting. The fully multi-coated (FMC) achromat glass brings excellent sharpness and color. It could also be used as a right-angle correct-image (RACI) optical finder scope (Eyepieces and Prism Diagonal sold separately).
SPECIFICATIONS
Model | SV198 |
Type of Optics | Achromat Refractor |
Lens Structure | 2-Elements/ 1Groups |
Tube material | Aluminum |
Aperture | 50mm / 1.97in |
Focal ratio | f/4.1 |
Focal Length | 206.6mm / 8.13in |
Coating | Fully multi-coated |
Blackened Lens Edges | Yes |
Focuser | Dual Helical + Telescopic Design |
Dual Helical Focuser Focusing stroke | 11mm |
Focusing seat accuracy (Dual Helical Focusing) | 0.1mm |
Rough Focusing stroke | 38mm |
Focusing seat accuracy (Rough Focusing) | 1mm |
Connection thread to Eyepiece | 1.25" and T2 |
Base installation type | Vixen standard interface |
Tube diameter | 55.5mm |
Dew cap diameter | 58mm |
Total Length | 223mm |
Net Weight | 770g / 28.1oz |
About SvBony
Svbony started operation in 2009 as a manufacturer of astronomy and sports optical accessories, based in Shenzhen, China. For astronomy, Svbony offerings include a wide range of telescope parts and adapters for both visual and astrophotography. Svbony emphasize on good product quality at affordable prices, and has a distribution network across the world, with US/AU/UK/ES/DE/IT/FR oversea warehouses. Amateur astronomers world-wide recognize Svbony products to be of excellent value. Svbony also has one of the most varieties of hardware adapters for astrophotography - you will likely find a solution to a hardware connection problem you have.