Webb14 juli 2024 · (前出の3枚玉アポのtoa130,tsa120でもこれは同じです) 光学設計的には、枚数の少ない(2枚玉・3枚玉)レンズ構成においては「 ペッツバールの条件 」を満 … WebbThe 3.0″ and 3.5″ Feather Touch focusers need an end cap and the most popular end cap for the 3.0″ focuser is the M72 threaded end cap and the most popular end cap for the …
How would the Lunt 100mm (vs 80mm) perform in average UK …
WebbFeather Touch® 3.5″ Diameter Dual Speed Telescope Focuser Kit, 4.5″ DTT, and Brake. The telescope must have at least 4.35″ of clearance for the draw tube to go inside of the … Webb22 okt. 2012 · Page 5 of 5 - TAKAHASHI TOA-130NFB REFRACTOR - posted in Refractors : When asked about the Tak 4” focuser on the TOA130NFB “T-ara-fan” had this to say: ”I have no problems whatsoever. Not even at -20°C. I have about 3kg on my TOA130-NFB with the 4 focuser: that weight includes massive TAK flattener, ZWO OAG-L, guidecam, 7X2 EFW, … klima whitehorse
TOA-645 FL130 Flattener for TOA130 First Light Optics
http://www.astrosurf.com/topic/160952-monture-nomade-em200-ou-am5-and-co/ WebbDescription. Astrophotographers see the FSQ-106EDX4 as one of the best astrographs available for amateur astronomers. With a focal length of 530 mm, an image circle of 88 … Webb22 okt. 2012 · If that’s the case, then portability comes into play. There’s no disputing that the TOA-130 provides impeccable optical performance both visually and photographically. But, its shear bulk better lends itself to a more permanent mounting. There are certainly enumerable TOA-130 owners who set up and tear down nightly. klimaexpedition germanwatch