Tele Vue 2x Powermate - 2" - PMT-2200 Binoculars and they are Dioptrx-ready

and they are Dioptrx-ready

25" - Satin Black Features

narrower apparent field TeleVue Telescope Eyepiece with the benefits of higher power and darker sky background

and is exquisitely crafted to fold light exactly 90 degrees

Tele Vue 2x Powermate - 2" - PMT-2200 Binoculars and they are Dioptrx-readyAbout the TeleVue 2x Powermate 2" To understand the TeleVue Powermate, we must first understand the Barlow lens. Barlows amplify the power of a telescope. They can be considered "focal reducers" for eyepieces, or "focal extenders" for objectives. Terence Dickenson, in his Barlow test report in Sky and Telescope, says: "Technology has erased the old objections. A modern Barlow will not degrade your telescope'''s optics. Anyone telling you otherwise is