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Orion Telescopes
4.7mm Tele Vue Ethos-SX Telescope Eyepiece
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Expected Ship Date: 07/26/2024

  • This beautiful 4.7mm Tele Vue Ethos-SX telescope eyepiece sports an amazing 110-deg apparent field of view
  • Short 4.7mm focal length eyepiece provides high-magnification views with an very wide field
  • Ideal for high-power telescopic views of expansive target objects
  • Eyepiece is parfocal with a wide range of other 1.25" Tele Vue telescope eyepieces
  • Equipped with 1.25" barrel and includes a 2" adapter for use in either 1.25" or 2" telescope focusers

Learn more
Item #  08300b
Mfg Model #  ETH-04.7

Tele Vue designers have pushed the envelope yet again with the beautiful 4.7mm Ethos-SX eyepiece. This magnificent ocular boasts an astounding 110 apparent field of view. This is the same field size used in LEM Simulator optics that Tele Vue founder Al Nagler designed 45 years ago to train NASA astronauts so they?d be familiar with the expansive views that awaited them during lunar landings. Imagine enjoying this ultra-wide view through a telescope from the comfort of your own backyard. With the Ethos-SX 4.7mm telescope eyepiece, you can!  

This gem of a telescope eyepiece has been 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 the natural view Ethos eyepieces have become known for. Its 4.7mm focal length will provide a high-magnification, yet very wide view that will keep you entertained at the eyepiece hour after hour.

The Tele Vue 4.7mm Ethos-SX is equipped with a 1.25? barrel and is parfocal with the wide range of other 1.25? Tele Vue telescope eyepieces. A 2" adapter is included for use in larger 2? telescope focusers.

Your observations will never be the same once you?ve used a 4.7mm Ethos-SX telescope eyepiece!


This product is serviced and supported by its manufacturer according to the terms and conditions included in the packaged product. Orion's limited warranty does not apply. Please contact the manufacturer directly for technical support.

  • User level
  • Design
  • Eyepiece focal length
  • Barrel size
    1.25" & 2"
  • Apparent field of view
  • Eye relief
  • Coatings
    Fully multi-coated
  • Filter threads
  • Parfocal
  • Field stop diameter
  • Barrel security recess
  • Blackened lens edges
  • Rubber eyeguards
  • Body material
  • Case
  • Weight (oz.)
  • Additional included accessories
  • Other features
  • Warranty
    Limited lifetime

1.25" Tele Vue Ethos-SX 4.7mm telescope eyepiece
2" Barrel adapter

Orders received by 1pm Eastern Standard Time for in-stock items ship the same business day. Order received after noon will ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.

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