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Borlow lens 2x Omni #93326 Borlow lens 2x Omni #93326
... by doubling its effective focal length. For example, an 18mm eyepiece used with a 2x Barlow lens would have the magnifying power of a 9mm eyepiece. It?s like having two eyepieces ... moon and planets, double stars and even close-up views of terrestrial subjects, a Barlow lens is the answer. Barlow lenses mount into either your telescope?s focuser or visual back.

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