Tele Vue · Eyepiece
Tele Vue Ethos 4.7mm
Tele Vue Ethos 4.7mm: a short-focal-length eyepiece with a 110-degree field that turns high magnification into a true spacewalk experience.
Price updated Mar 29, 2026
Performance Scores
Overview
The Tele Vue Ethos 4.7mm is a serious high-magnification eyepiece aimed at observers who want maximum detail without sacrificing the sense of immersion that wider fields provide. At 4.7mm, it delivers high power on planetary surfaces, globular clusters, and fine nebula structure, depending on your telescope's focal length. What sets it apart from typical short-focal-length eyepieces is the 110-degree apparent field of view, which is genuinely unusual at this magnification range and makes objects feel three-dimensional rather than pinned to a flat circle. The 15mm of eye relief is generous for an eyepiece this short, making it comfortable to use over long sessions.
Astigmatism sufferers will appreciate native compatibility with Tele Vue's DIOPTRX corrector. The 8.94mm field stop keeps edge sharpness consistent, and the fully multi-coated optics handle contrast and light throughput well. At $745, this is a premium purchase that requires honest consideration. It fits 1.25-inch focusers natively, with a 2-inch adapter included.
It rewards observers with quality telescopes, particularly those using fast to moderate focal ratios, and punishes nothing except your budget. For dedicated planetary and deep-sky detail work, few eyepieces compete at this field width.
At a Glance
4.7mm
Focal Length
Specifications
Key Features
- Delivers 110 degrees of apparent field at 4.7mm, a rare combination that makes high-power views feel genuinely immersive
- 15mm eye relief is comfortable for extended sessions, even for eyeglass wearers
- Compatible with Tele Vue DIOPTRX adapter, offering built-in astigmatism correction that most eyepieces do not support
- Includes both 1.25-inch and 2-inch adapter, giving flexibility across different telescope focusers
- Fully multi-coated optics maintain contrast and minimize light scatter at high magnifications
- 8.94mm field stop diameter controls edge vignetting and supports sharp views across the full field
- Best suited for observers using quality optics, as the eyepiece will reveal the limits of your telescope as readily as its strengths
Customer Reviews
3 reviews
We have had a 12" reflector (Skywatcher collapsible dob) for several years. For our anniversary we decided to splurge on some eyepieces. Tele Vue are the ones you find on most forums in the 'if you have the money' list. They are among the priciest but the quality is outstanding. We now have 3 Tele V...