Tele Vue 2X Barlow - 1.25" - BLW-2125 (pre-owned) 100 mm Refractors high contrast images that are

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

Quad APO optics for amazing clarity

and science educators

and proven in the field

adding an extra piece of flat glass such as a filter may not affect the optical performance

Tele Vue 2X Barlow - 1.25" - BLW-2125 (pre-owned) 100 mm Refractors high contrast images that areAbout 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