Tele Vue 2X Barlow - 1.25" - BLW-2125 21mm When lighting conditions are not

When lighting conditions are not ideal and there is a lot of glare or light entering from the side

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Explore Scientific 14mm 100 Degree Series Waterproof Telescope Eyepiece - 2" Features

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Concerts & live events and Boating

Tele Vue 2X Barlow - 1.25" - BLW-2125 21mm When lighting conditions are notAbout 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