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 17 of 64 
Orion Telescopes

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Orion Explorer II 7-21mm Zoom Telescope Eyepiece
$69.99
 
Accepted Payment
In Stock
  • The Orion Explorer II Zoom eyepiece lets you change magnification power without physically changing eyepieces
  • A twist of the zoom eyepiece housing changes focal length from 21mm to 7mm, providing a variety of viewing magnification powers
  • Eyepiece consists of four elements which are fully coated with anti-reflection coatings for clear, contrasty views
  • Exceptionally long 33mm-to-16mm eye relief range allows eyeglass wearers to enjoy the entire view while still wearing their corrective lenses without vignetting
  • The 1.25" barrel is threaded for use with like-sized Orion eyepiece filters


Learn more
Item #  08548

Now even the casual telescope user can enjoy the benefits of zoom eyepiece technology. A twist of the affordable 7-21mm Orion Explorer II Zoom Telescope Eyepiece housing changes the focal length from 21mm to 7mm, or to any focal length in between. That makes it ideal for locating an object at low magnification, then zooming in at higher magnifications for closer inspection. Without changing eyepieces! Actual magnification range will depend on the focal length of your telescope. It works equally well for astronomical or terrestrial viewing. This four-lens telescope eyepiece boasts fully coated optics and exceptionally long eye relief ranging from 33mm to 16mm. Apparent field of view is 30 at 21mm and 43 at 7mm. Rubber traction ring ensures a good grip. The 1.25" barrel is threaded for filters. A nice value in a quality zoom eyepiece!

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.

Product Support
Visit our product support section for instruction manuals and more
  • Design
    Proprietary
  • Eyepiece focal length
    21.0mm - 7.0mm
  • Barrel size
    1.25"
  • Apparent field of view
    30.0° - 43°
  • Eye relief
    33.0mm
  • Coatings
    Fully coated
  • Number of elements
    4
  • Filter threads
    Yes
  • Parfocal
    No
  • Barrel security recess
    No
  • Blackened lens edges
    Yes
  • Rubber eyeguards
    No
  • Body material
    Aluminum
  • Case
    No
  • Weight (oz.)
    6
  • Dimensions
    3.2 in. x 1.6 in.
  • Warranty
    One Year

Orders received by 1pm Eastern Time for in-stock items ship the same business day. Orders received after 1pm 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.

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