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This high performance barlow features a fully-multicoated achromatic design. This short barlow will work in diagonals or reflectors, has internal darkening and edge-blackened lenses, and is parfocal with most eyepieces. It features a clear aperture of 27mm. Suitable for high contrast, high power applications in any telescope. Made in Canada.
This new version of Antares' popular UB3S barlow features an integrated twist-lock adapter to securely center and hold your eyepiece. The inner compression ring is made of polypropylene and will not mar your eyepieces. Unscrewing the twist-lock ring exposes a male T-thread underneath which can be used to couple imaging devices with the barlow.
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