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首页 >>目镜增倍镜>>TELEVUE>>Televue 4.7mm Ethos SX Eyepiece - 1.25"/2天文望远镜进口
Televue 4.7mm Ethos SX Eyepiece - 1.25"/2天文望远镜进口
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Televue 4.7mm Ethos SX Eyepiece - 1.25"/2"


  • This TeleVue Ethos SX Eyepiece is offered in a 1.25"/2" barrel format with a 4.7mm focal length.

     
  • Designed and crafted to combine its exceedingly wide field of view - the same as the LEM Simulator optics.

     
  • This TeleVue Ethos SX Eyepiece offers high contrast, color-rendition, distortion correction and center-to-edge sharpness needed to achieve that natural view.

     
  • Small exit pupil yields a darker background to enhance contrast.

TeleVue 4.7mm Ethos SX Eyepiece - 1.25"/2"

Al Nagler eagerly pushed Ethos designer Paul Dellechiaie to extend the new 3.7mm focal length to reach 110°, the same field size as the LEM Simulator optics Al designed 45-years ago to train NASA astronauts for lunar landings.


The new 4.7mm Ethos-SX, like its 3.7mm progenitor, is designed and crafted to combine its exceedingly wide field of view with all the contrast, color-rendition, distortion correction and center-to-edge sharpness needed to achieve that natural view.


Compared to a lower power eyepiece with the equivalent TFOV (similar field stop) such as an 11mm Plössl (9.1mm field stop), the greater power - for higher resolution, and smaller exit pupil (for a darker background to enhance contrast) reveals a deep sky experience "even better than you imagined".

 

TeleVue 4.7mm Ethos SX Eyepiece Features...

  • The 4.7mm is a 1¼" format and is parfocal with the wide range of 1¼" Tele Vue eyepieces.
  • 2" adapter included.
  • Weight: 1.15 lbs / 1.3 lbs with 2" adapter/stand
  • Eye relief: 15mm (accepts DIOPTRX eyesight astigmatism corrector)
  • Effective field stop diameter: 8.94mm
  • Focal length: 4.7mm
  • Apparent field: 110°

TeleVue Product Number: ETH-04.7

 

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