Web107 Likes, 3 Comments - 스루 (@through_astro) on Instagram: "안추달밤 백조자리 초승달성운 Cresent nebula GSO 12inch F4 newtonian TSGPU iOptron ..." WebOct 17, 2024 · This 8" Astro-Tech AT8IN optical tube is a very fast focal ratio f/4 reflector that has been optimized for wide field deep space imaging. It can be used with 35mm cameras, DSLRs, web-cams, DSI-type …
Guan Sheng Optical
WebDec 29, 2024 · GSO 6" F4 besides the GSO 10" F4- as you can see it's an altogether lighter, more portable instrument. GSO 6" F4 with DSLR mounted Detail of the sturdy 2" focuser The rear mirror cell- which as usual benefits from upgrading the factory fitted springs. View down the main tube- at F4 the secondary mirror is quite large. ... WebThis compact and affordable 300mm (approx. 12") f/4 Newtonian optical tube assembly (OTA) from GSO has fast optics for imaging extended … teachup2030
GSO 8" f/4 Imaging Newtonian Reflector Telescope - Steel OTA …
WebFeb 26, 2009 · Posted October 17, 2008. My main reason for obtaining this coma corrector was for imaging with the GSO F4 Newtonian. It came as part of an excellent package put together by Bern at Modern Astronomy. £105 buys you the basic corrector for use when imaging. £129 gets you a T2/M48 expansion ring, 14mm and 28mm spacers, and an … WebApr 27, 2014 · On 26/04/2014 at 04:05, ronin said: The brightness depends on the f number not the diameter. An f/5 6" scope will produce the same brightness image as an f/5 8" scope. That is why people use f/5 80mm ED's and apo's for imaging. I have always wondered why imagers use scopes of only 80mm such as ED's and apo's. Web6" f/4 Imaging Newtonian telescope - for astro photography and rich field observation fast and diffraction limited reflector system (f/4) bright image by forced 94% mirror coatings good field illumination by 63mm secondary mirror robust mechanical system, no tilting/bending even under heavy camera load teachup 2030