At NEAF 2008 Tele Vue were pleased to demonstrate a new 8mm focal length, 100° AFOV Ethos eyepiece.

In addition to matching all the key performance criteria of its 13mm sibling, the new 8mm version is parfocal
in 1¼" focusers with Radians, Plössls, Type 6 Naglers and 1¼" Panoptics.
Further, its lighter weight and smaller diameter than the 13mm Ethos makes the 8mm suitable for
anyone using a binocular viewer.
Another application is for spotting scope set-ups with the Tele Vue 60° 1¼" diagonal.
In comparing it to our 8–24mm Zoom eyepiece, the 8mm Ethos has the power of the 8mm Zoom and 83% of
the field of the 24mm setting!
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The 8mm Ethos is dual barrelled for 1.25" and 2" focusers and has 15mm Eye Relief
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The 100° compared to the plossl 50° field of view looking at the Andromeda galaxy.
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Ideal for Bino Vue use
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See faint stars become visible and more detail on all deep sky objects!
The large apparent field of view combined with the shorter focal length, will, for a given field in the sky, result in
higher magnification, giving you a darker sky background, and this will enable you to see fainter stars and more detail!
The 8mm Ethos delivers:
- 100° apparent filed (50% larger in area than the 82° Naglers)
- Comfortable eye relief so you can wear you spectacles!
- Accepts DIOPTRX for eyesight astigmatism correction
- Distortion Correction
- High contrast and on-axis sharpness for planetary viewing
The "do-it-all" eyepiece for all scopes that can use it's focal length including all TeleVue's own scopes...
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Telescope
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Magnification
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True Field °
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Exit Pupil (mm)
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TV60 & TV60is
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45.0x
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2.21
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1.33
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TV76
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60.0x
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1.66
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1.27
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NP-101 & NP-101is |
67.5x
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1.47
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1.48
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TV85 |
75.0x
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1.33
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1.14
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NP-127is |
82.5x
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1.21
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1.54
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TV-102 & TV-102is |
110.0x
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0.91
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0.93
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Tele Vue 8mm Ethos Specifications
- Apparent Field: 100°
- Focal Length: 8mm
- Effective Field Stop: 13.9mm
- Eye Relief: 15mm (accepts DIOPTRX™ eyesight astigmatism corrector)
- Barrel Size: 2"/1¼"
- Barrel Diameter: 53.4mm
- Weight: 0.95lbs. / 430g
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Now you can have your own 8mm Tele Vue Ethos Eyepiece from Venturescope for £429.00!
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