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Orion Telescopes

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3mm Orion Long Eye Relief Telescope Eyepiece
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  • High-power 3mm telescope eyepiece ideal for pristine high-magnification views
  • Long 20mm eye relief makes each view comfortable, with or without eyeglasses on
  • Nice 55° eyepiece apparent field of view gives you a large window to the cosmos
  • Provides excellent correction for sharp details all the way to the edge
  • Threaded for use with 1.25" Orion eyepiece filters


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Item #  07842

Whether you wear eyeglasses or not when you view the night sky, you’ll appreciate the exquisite optical performance and build quality of our 3mm Orion Long Eye Relief telescope eyepiece. With its luxuriously long 20mm eye relief, you can keep your glasses on and still see the entire field of view in comfort. When observing without corrective lenses on, a supple pop-down rubber eyeguard helps position your eye properly to take in the whole view.

This beautiful, fully multi-coated, 1.25” eyepiece delivers rich, high-contrast images across a 55° apparent field of view. Thanks to its design, the 3mm Long Eye Relief telescope eyepiece provides excellent correction so stars stay sharp and bright all the way to the edge of the visible field. Featuring seven high-quality lens elements, the 3mm Orion Long Eye Relief telescope eyepiece is more highly corrected than popular Plössl eyepieces.

The 1.25” eyepiece’s short, 3mm focal length provides sharp, clear high-power views ideal for planetary study and detailed close-ups of lunar craters, mountains, and mare (seas). You can enhance your views through this 3mm eyepiece with any 1.25” Orion eyepiece filter since its barrel is conveniently threaded for filter use.

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
    3.0mm
  • Barrel size
    1.25"
  • Apparent field of view
    55.0°
  • Eye relief
    20.0mm
  • Coatings
    Fully multi-coated
  • Number of elements
    7
  • Filter threads
    Yes
  • Parfocal
    Yes
  • Barrel security recess
    Yes
  • Blackened lens edges
    Yes
  • Rubber eyeguards
    Yes
  • Body material
    Aluminum
  • Case
    No
  • Weight (oz.)
    10
  • Dimensions
    4.2 in. x 1.9 in.
  • Warranty
    One year

Orders received by noon Pacific Time for in-stock item the same business day. Order 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.

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