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Home / Products / Astronomy Eyepiece / 1.25‘’ 4mm 10mm 23mm 62 Degrees Astronom
1.25‘’ 4mm 10mm 23mm 62 Degrees Astronomical Telescope Eyepiece

1.25‘’ 4mm 10mm 23mm 62 Degrees Astronomical Telescope Eyepiece

The 1.25 inch 4mm, 10mm, and 23mm 62 degrees aspheric wide-angle astronomical telescope eyepieces are entry-level optical components for amateur astronomy. Designed for 1.25 inch focusers, they deliver a wide field of view up to 62 degrees with minimal distortion and comfortable eye relief. Each eyepiece is packaged with a dust cover and objective lens cover.

  • 62 degrees field of view provides a wide celestial view, ideal for deep-sky observation
  • Aspheric lens design reduces distortion and improves edge sharpness
  • Long eye relief enhances comfort during extended viewing sessions
  • Available in three focal lengths (4mm, 10mm, 23mm) for flexible magnification options
  • Universal 1.25 inch fit ensures compatibility with most telescopes
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Technical features

  • Field of view: 62 degrees aspheric wide-angle
  • Focal lengths: 4mm, 10mm, 23mm
  • Mount size: 1.25 inch universal fit
  • Eye relief: longer than standard short-focus eyepieces (SR4, OR4, 9mm exit pupil)
  • Minimal distortion across the field of view
  • Includes dust cover for eyepiece and objective lens
  • Packaged in a box with one eyepiece per unit

Who it is for

  • Amateur astronomers building or upgrading telescope systems
  • Educational institutions teaching observational astronomy
  • Distributors offering entry-level astronomy accessories

Specifications

Focal Lengths4mm, 10mm, 23mm
Field of View62 degrees
Mount Size1.25 inch
Lens TypeAspheric
Eye ReliefLonger than standard short-focus eyepieces
DistortionMinimal
PackagingBox with 1 eyepiece, dust cover, objective lens cover

Use guide

  • Select 4mm for high magnification on planets and lunar details
  • Choose 10mm for balanced magnification and field of view on star clusters and nebulae
  • Use 23mm for low magnification and wide field of view on large deep-sky objects
  • Ensure telescope focuser is 1.25 inch to match the eyepiece size

FAQ

What focal lengths are available?
4mm, 10mm, and 23mm.
Is this eyepiece compatible with my telescope?
Yes, if your telescope has a 1.25 inch focuser.
What is the field of view?
62 degrees, which is wider than standard 50-degree eyepieces.
Does it include dust covers?
Yes, one eyepiece dust cover and one objective lens dust cover are included.
What is the eye relief like?
Longer than standard short-focus eyepieces, providing better comfort for extended viewing.

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