Tele Vue 17.0 Ethos (ETH-17.0) 16-20mm Massive Objective Lenses

Massive Objective Lenses

the screws will prevent the dovetail plate from slipping away when placed on an EQ mount

25" star diagonals that Celestron has ever offered

3 Accessories Mounting Accessories Rings/V-Rail Included Case Yes Corrector No (optional)

Tele Vue 17.0 Ethos (ETH-17.0) 16-20mm Massive Objective LensesThe 17mm ETHOS is an ideal complement to the 31mm Nagler Type 5. They are parfocal (both have focus locations about 3 8" above shoulder) and the 31mm Nagler Type 5 has exactly twice the true field area. TeleVue is known for its in house eyepiece and telescope designs by Al Nagler; our latest eyepieces brings new meaning to the term "in house." The concept for this eyepiece series was proposed by TeleVue President David Nagler, with performance