Tele Vue 2x BIG Barlow 2" 65° FOV especially if you live in

especially if you live in a light-polluted area

Our 100% QC program at f/4 insures that Powermates™ will add dramatic power (and NOTHING ELSE) to your favorite eyepieces

grab-and-go telescope mount with fine motion control knobs and an adjustable mounting arm for visual astronomy and daytime terrestrial observations

such as diffuse emission nebulae in the summer sky like the Lagoon (M8)

The DeLite series is a delightful addition to Tele Vue's visionary line of eyepiece developments

Tele Vue 2x BIG Barlow 2" 65° FOV especially if you live inDescription TeleVue Barlows reduce aberrations to below the airy disc in an f 4 system and lay to rest the popular myth of the "degrading Barlow." Properly designed Barlows do wonderful things: They amplify power, slow the telescope's f # (improving eyepiece sharpness), and give designers the opportunity to compensate for eyepiece aberrations. Tele Vue Barlows use multi coated high index glasses for optimum aberration correction, exceptional contrast