WebOct 1, 2024 · Recently, Guan Sheng Optical of Taiwan (GSO) re-introduced the parabolic primary- hyperbolic secondary design in 6, 8, and 10-inch apertures. I opted for the 8-inch scope with a glossy white tube [it's also available with a gloss black tube] as it seemed to the best combination of capability, weight, and price. WebThe TS 12" f/8 Ritchey-Chrétien Astrograph is a dream telescope for astrophotography. ♦ Aperture 12" / 304 mm. ♦ Focal Length 2432 mm. ♦ Focal ratio f/8. ♦ Hyperbolic primary and secondary mirror for very high sharpness on the optical axis and a large well-corrected field for astrophotography. ♦ Mirrors made of fused silica for ...
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WebGuan Sheng Optical (GSO) Manufacturer's Specs. Parabolic mirror with matching secondary. Diffraction limited. BK7 glass. 1/16 wave RMS minimum, typically better. Aluminum reflective coating. Protective coating … http://www.gs-telescope.com/content.asp?id=144 gannon\u0027s pacific view restaurant wailea
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WebCopyright (c) 2024 Guan Sheng Optical Co.,Ltd. No. 225, Wuhe St, Qionglin, Hsinchu County, Taiwan, R.O.C [email protected] TEL:886-3-593-6688 FAX:886-3-593 … All GSO dobsonian use optical quality BK7 glass, cooling fans built into the rear cell … Newtonian OTA: 6" F/4 Newtonian OTA: 8" F/4 Newtonian OTA These split and hinged optical tube mounting rings are made of cast … All GSO dobsonian use optical quality BK7 glass, cooling fans built into the rear cell … We offer secondary flat mirrors to match the complete telescope set request, our … The GSO right angle achromatic finder scopes have a built-in Amici prism to … WebOct 2, 2010 · Page 1 of 2 - Optical quality in mirrors of 16 "F4.5 of GSO - posted in Reflectors: Hello; Im building a 16 Dobson and its time to look for the 16 F4.5 optics and I do not want to ruin myself by buying very good optics that are worth a lot of money and more than I can afford. That is why I ask those who have the optics of 16 F4.5 GSO. How is … WebDec 13, 2024 · GSO 8-inch TRUE CASSEGRAINIAN. By Lawrence Carlino. Decades ago, I acquired my first telescope with the performance and tracking ability to undertake serious planetary observing. The Cave … gannon university basketball schedule