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Orion Telescopes

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Orion 7.5-22.5mm Premium Zoom Telescope Eyepiece
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  • High quality zoom telescope eyepiece designed for convenient, comfortable, and crisp views of the night sky
  • Large eyepiece focal length range of 7.5mm to 22.5mm provides a variety of magnifications from high-power to moderate
  • Comfortable eye relief range of 19.5mm at 22.5mm focal length, and 18mm at 7.5mm focal length makes this an ideal zoom eyepiece for eyeglass wearers
  • Fully multi-coated lens elements and glare-threaded barrel maximize the contrast and brightness of your views
  • 1.25" barrel is threaded for use with 1.25" Orion eyepiece filters


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Item #  08238

You've just managed to center a hard-to-find object in your low-magnification eyepiece's field of view. After several moments of admiration, you decide to zoom in for a closer look. But that usually means swapping out your eyepiece several times, as you increase magnification. The slightest bump or jiggle, and you may have to relocate and center the object all over again. Suppose after several swaps to zoom in, you realize the object is best-viewed at low magnification?

With Orion's new Premium Zoom Telescope Eyepiece, the problem is solved! The Premium Zoom is an elegant and convenient alternative to using multiple telescope eyepieces of differing focal lengths to achieve views of differing magnification. With the Premium Zoom, you simply adjust the focal length up or down according to your preference, without having to remove the eyepiece from the telescope focuser.

The Orion Premium Zoom Telescope Eyepiece features a focal range of 22.5mm to 7.5mm, with marked indicators for settings of 7.5mm, 12mm, 17mm and 22.5mm. The wide range of focal lengths allows you to enjoy the finer details of an object, as well as its more apparent features, while leaving the eyepiece securely seated in the focuser. The large ocular lens provides comfortable viewing with a 42 degree apparent field of view at 22.5mm, and a 66 degree field of view at 7.5mm.

The telescope eyepiece, which consists of eight lens elements in five groups, is fully multi-coated (all air-to-glass surfaces) with anti-reflection coatings for clear, crisp views. The lens edges have been blackened to prevent glare. Dual-purpose threading of the 1.25" barrel enables the eyepiece to be used with Orion filters, while also preventing glare.

The Orion Premium Zoom, made of black anodized aluminum construction, was designed with viewing comfort in mind. It features generous eye relief of 19.5mm at the 22.5mm focal length setting and 18mm at the 7.5mm focal length setting. A twist-up rubber eyeguard and rubber knurled grip ring for focal length adjustment round out the aesthetic features of this high-quality, high-performance telescope eyepiece.

Weighs 10 oz. Dust caps are included.

Warranty

Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. For complete warranty details contact us at 800-676-1343.

Warning

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

  • Design
    Proprietary
  • Eyepiece focal length
    22.5mm - 7.5mm
  • Barrel size
    1.25"
  • Apparent field of view
    42.0° - 66.0°
  • Eye relief
    19.5mm
  • Coatings
    Fully multi-coated
  • Number of elements
    8
  • Filter threads
    Yes
  • Parfocal
    Yes
  • Field stop diameter
    24.9mm
  • Barrel security recess
    No
  • Blackened lens edges
    Yes
  • Rubber eyeguards
    Yes
  • Body material
    Aluminum
  • Case
    No
  • Weight (oz.)
    10
  • Warranty
    One year
Orion Premium Zoom Telescope Eyepiece
Dust caps

Orders received by noon Pacific Time for in-stock items ship the same business day. Orders received after noon will ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.

Orion 7.5-22.5mm Premium Zoom Telescope Eyepiece
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2 With the Orion 7.5-22.5mm Premium Zoom Telescope Eyepiece you can find an object and then view it at different magnifications withouth having to swap out eyepieces. It is perfect for viewing any number of celestial objects at low or high power.
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premium zoom eyepiece
PostedFebruary 1, 2011
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gary p
 
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excellent , and well made eyepiece ! well worth the money
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Orion zoom telescope eyepiece
PostedMarch 10, 2010
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Sybil A
 
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I do not know why I waited so long to purchase the zoom eyepiece. It easy to use and no more changing eyepieces in the dark. Going from 22.5 mm to 7.5mm, with with just a slight refocus, makes a night of planet and galaxy viewing pleasurable. Sybil Arnold-Austin Astronomy Society,Texas
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