For those observing targets and applications where you need more power than your telescope eyepieces alone can provide, we offer the 1.25" 3x Orion Tri-Mag Barlow Lens. It gives a big 3x magnification boost to any 1.25" telescope eyepiece it's used with. This is desirable for lunar and planetary observing and for extracting higher powers from "fast" telescopes such as f/5 and f/4 refractors and reflectors. For long-exposure astrophotography, the power amplification provided by the Tri-Mag allows more precise guiding and use of a shorter guide telescope, such as a rich-field refractor (e.g., the Orion ShortTube 80). With the Tri-Mag barlow you can use longer-focal-length telescope eyepieces to achieve high powers, which offers the benefits of better edge sharpness and eye relief than you'd get using the equivalent high-power eyepiece without the barlow.

The Tri-Mag utilizes a multi-coated achromatic "negative" lens that effectively triples the focal length of the telescope's optics. The housing is precision machined from aluminum stock and black anodized to a hard finish. Both the housing and the chrome portion of the barrel are glare threaded and blackened inside to provide maximum contrast. The lens end of the barrel is threaded to accept standard filters.

Power-up your eyepiece collection and your telescope's performance with the new 1.25mm 3x Orion Tri-Mag multi-coated Barlow Lens.

Length, 5". Weighs 5.8 oz. One-year limited warranty.

Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.

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