Skip to product information
Orion 16 mm EF Widefield 1.25” Eyepiece stood upright with the collapsible rubber eyecup collapsed fully
  • Orion 16 mm EF Widefield 1.25” Eyepiece stood upright with the collapsible rubber eyecup collapsed fully
  • Orion 16 mm EF Widefield 1.25” Eyepiece stood upright with the extendable rubber eyecup adjusted out to full extension
  • Orion 16 mm EF Widefield 1.25” Eyepiece laid on its side with the 1.25" barrel tilted forwards and to the left
  • Orion 16 mm EF Widefield 1.25” Eyepiece laid on its side, with the eyepiece side facing forwards and to the right
  • Orion 16 mm EF Widefield 1.25” Eyepiece viewed from a high angle, looking down on the eyepiece side
  • Orion EF Widefield 1.25” Eyepiece barrel demonstrating the attachment of an 1.25" filter
16 mm EF Widefield 1.25" Eyepeice

16 mm EF Widefield 1.25" Eyepeice

$69.95

Exp Delivery : Thu, 12 Nov

Free shipping on orders to the contiguous U.S.

In Stock

Essential Accessories

View product details to see essential accessories, benefits and financing info

Product Details

Since 1975

Free Shipping Site-Wide

2-Year Warranty


Expert Support

Description

Enjoy bright, immersive views of celestial objects with the Orion Extra-Flat (EF) Widefield 65° 16 mm Eyepiece for 1.25″ telescope focusers. This premium widefield eyepiece delivers an expansive 65° apparent field of view, perfect for sweeping panoramas of nebulae, star clusters, and the Milky Way. Its advanced multi-coated lenses maximize light transmission and contrast while minimizing reflections for crisp, high-clarity images across the entire field. Built with a comfortable rubber eyeguard and solid metal housing, this eyepiece offers reliable performance and observing comfort during extended sessions. Whether you’re scanning deep-sky objects or tracking planets, the Orion EF 16 mm brings more of the universe into view.

Product Specifications

  • Barrel Size: 1.25″ (31.7 mm)
  • Eye Relief: 18 mm
  • Optical Coatings: Fully multi-coated
  • Compatible Filters: Yes (1.25″)
  • Best For: Medium-power viewing of celestial objects such as open star clusters, nebulae, lunar craters, and some planetary features

Product Features

  • Fully multi-coated, edge-blackened optics enhance light transmission
  • Rubber-rimmed twist-up eyecup blocks stray light
  • "Extra Flat" design minimizes field curvature

  • Rubber grip band on the barrel for easy handling, even with gloves.
  • Barrel threads accept standard 1.25" telescope filters
  • Uses a sturdy black-anodized aluminum housing

Product Manual

Orion EF Eyepiece Manual

What’s Included

  • 16 mm EF Widefield 1.25" Eyepiece
  • 2x Dust Covers

Reviews

Questions & Answers