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I'm considering adding a wide field eyepiece to my arsenal for my AstroTech AT115EDT (805mm, f/7) for the times I do take it a dark site. I would like to have ≥3.0° TFOV, and be sharp as possible. I have a Bresser 35mm 70° (TFOV 3.0°), and it's mushy in the outer...
Hi I have a Orion XT8i and I was thinking of getting the Orion 38mm Q70 Wide-Field Telescope Eyepiece for Nebula and Star clusters. Also thinking of a Nebula filter. Would I be better with a Baader UHC-S Nebula Filter 2 or a 0-lll filter. Any input would be great thanks in ad...
The telescope or aiming telescope has a central tube (6) including a reversal system (1). An adjustable optical magnification lens is formed by a lens arrangement including two optical elements i.e. lenses (3a, 3b), which are moved relative to each other. An optical beam deflection part (...
Eyepiece series: ultra wide Focal length: 6mm/9mm/15mm/20mm Barrel size: 1.25" /31.7mm Apparent field of view: 66 degree Lens material: optical glass lenses Filter Threads: standard 1.25" filter thread Coating: fully multi coated broadband green ...
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1.25 inches standard eyepiece; not only for astronomical telescopes; but also for spotting scope; 7-Elements 4-Groups lens structure; 7-Elements 4-groups made of high index glass deliver sharp; high contrast vistas; M28.5*0.6 filter threads; base of SV191 zoom lens has a threaded adapter whi...
wide angle eyepiece 广角目镜 wide angle nozzle 广角喷嘴 wide angle periscope 广角潜望镜 wide angle radiometer 广角辐射计,宽角辐射计,宽视角辐射计 wide angle telescope 广角望远镜 wide angle diffuser 广角度散布器 Ross wide angle lens 罗斯宽角透镜 wide angle camera 广角摄影机,广角照相机 相...