Tele Vue 2X Barlow - 1.25" - BLW-2125 (pre-owned) 100 mm Refractors The RASA design has a

The RASA design has a convenient external prime-focus image capture location with a flat focal plane

with drive corrector capabilities

high contrast images that are virtually free of optical defects like chromatic aberration (color fringing)

Designed specifically to preserve your night vision

as well as Touptek electronic focusers

Tele Vue 2X Barlow - 1.25" - BLW-2125 (pre-owned) 100 mm Refractors The RASA design has aAbout the TeleVue 2X Barlow 1. 25" Properly designed Barlow lenses do wonderful things: They amplify power, slow the telescope''s f # (improving eyepiece sharpness), and give designers the opportunity to compensate for telescope eyepiece aberrations. Tele Vue Barlow Lenses use multi coated high index glasses for optimum aberration correction, exceptional contrast with virtually no light loss. Observed performance is aberration free, even when tested