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Bob Strong
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2019-02-18 12:49:49.662259
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Tele Vue Optics, Inc., 32 Elkay Drive, Chester, NY 10918 845 – 469 – 4551 Telescope Mag. (x) True Field (°) Exit pupil (mm) TV – 60, TV – 60is 76.6 1.42 0.78 TV – 76 102.1 1.07 0.74 NP – 101, NP – 101is 114.9 0.95 0.88 TV – 85 127.7 0.85 0.67 NP – 127is 140.4 0.78 0.90 TV – 102, TV – 102iis 187.2 0.58 0.54 Approximate dimensions of 4 .7mm ETHOS – SX A. Length of barrel abov e reference surface ( 5.4 “) B. Length below reference surface ( 0.9 “) D. Diameter of black barrel (2. 2 “) F. Approx. location of field stop (0. 25 “) 4.7 mm ETHOS – SX EYEPIECE INSTRUCTIONS Warning: Do not unscrew any sections of the eyepiece, as the lenses may fall out, thereby voiding the warranty. 4.7 mm ETHOS – SX 110 º (Simulator eXperience) Apparent Field: 1 1 0 º Focal length: 4.7 mm Effective Field Sto p: 8.94mm Eye Relief: Max . Barrel Diameter P arfocal with Tele Vue 1¼” eyepieces Barrel Size: 1¼ ” , with 2″ adapter included Weight: 1.15 lbs. , adapter/stand : 2oz Thank you for purchasing the Tel e Vue 4.7 mm ETHOS – SX , which fits both 2 ” and 1¼ ” focusers or diagonals. I n 2 ” mode it is pa rfocal with 10mm and 13mm Ethos. As a 1¼ ” eyepiece , it’s parfocal with Tele Vue Plössls, Radians , Type 6 Naglers, Nagler Zooms , and 1¼ ” Panoptics . Since it is design ed as a 1¼ ” eyepiece, there is NO optical benefit to using a 2 ” holder. The 2 ” adapter is included just for convenience, but i t i s also threaded to accept our 48mm filters. For 1¼ ” holders: Just unscrew the 2″ adapter . For 2 ” holders: Just leave the 2″ ada pter attached . When re – attaching, screw on until it stops. Do not tighten! For Newtonians/Dobsonians: This eyepiece is very well corrected over the full field. With mirror s f/4 or faster , you may wish to consider a Tele Vue Paracorr Type 2 to correct com a . instead of using eyeglasses, to get the sharpest view possible (check dioptrx.com for more details). However, unless you have substantial astigmatism such as 2 diopters, and a fast scope, such as f/4, you are not likely to need Dioptrx with this short focal length eyepiece. We wish you years of exciting viewing with the 4.7 mm ETHOS – SX , and we w elcome comments on your personal experiences.
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