8mm Ethos

Now accepting pre-orders. Shipments expected to start in July.

At NEAF 2008 TeleVue demonstrated 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 TeleVue's 8–24mm Zoom eyepiece, the 8mm Ethos has the power of the 8mm Zoom and 83% of the field of the 24mm setting!

• Apparent field: 100°
• Focal length: 8mm
• Effective field stop diameter: 13.9mm
• Eye relief: 15mm (accepts DIOPTRX eyesight astigmatism corrector)
• Barrel size: 2"/1¼"
• Black barrel diameter: 53.4mm
• Weight: 0.95 lbs (15.2 oz.)
• Availability: July 2008