Astronomy Eyepiece

1.25'' 4mm 10mm 23mm 62 Degrees Astronomical Telescope Eyepiece

Name: 1.25'' 4mm 10mm 23mm 62 Degrees Astronomical Telescope Eyepiece
Brand: AMADA Microscope

The 1.25 inch 62-degree aspherical wide-angle eyepiece is available in three focal lengths: 4mm, 10mm, and 23mm.

Product Overview

The 1.25 inch 62-degree aspherical wide-angle eyepiece is available in three focal lengths: 4mm, 10mm, and 23mm. It provides a large field of view with minimal distortion and a long eye relief, suitable for entry-level astronomical observation and telescope setup. The eyepiece fits any 1.25 inch focuser and is supplied with a dust cover and objective lens cover.

Focal length4mm, 10mm, 23mm
Apparent field of view62 degrees
Lens typeAspherical
Barrel size1.25 inch
Eye reliefLong
DistortionMinimal

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Key Benefits

62-degree field of view offers a wide visual field at low cost
Aspherical lens design reduces distortion across the field
Long eye relief improves comfort during extended viewing sessions
1.25 inch universal fit allows use across multiple telescope models
Available in 4mm, 10mm, and 23mm focal lengths for different magnification needs

Application Scenarios

Entry-level astronomical observation with a beginner's telescope
Setting up a telescope for educational use in schools or amateur astronomy clubs
Replacing a standard eyepiece with a wider field of view for better sky coverage
Using with a telescope that has a 1.25 inch focuser for visual inspection
Combining with different objective lenses to achieve variable magnification

Who It Is For

Amateur astronomers and hobbyists using 1.25 inch telescopes
Educational institutions teaching basic astronomy
Telescope dealers offering accessory kits
Beginner users upgrading from standard eyepieces
Amateur astronomy dealers selling component-level accessories

Problems It Solves

Standard eyepieces with narrow fields limit sky coverage during observation
Short eye relief causes discomfort during long viewing sessions
Lack of wide-angle options at low cost restricts entry-level setups
Incompatible or non-standard sizes prevent easy interchangeability
No dust protection leads to lens contamination in storage or transport

Technical Features

Aspherical lens design for reduced optical distortion
62-degree apparent field of view for wide-angle viewing
1.25 inch barrel diameter for universal compatibility
Long eye relief for comfortable viewing with glasses
Supplied with dust cover and objective lens cover for protection

Specifications

Focal length	4mm, 10mm, 23mm
Apparent field of view	62 degrees
Lens type	Aspherical
Barrel size	1.25 inch
Eye relief	Long
Distortion	Minimal
Mount type	Universal 1.25 inch
Included accessories	Eyepiece, dust cover, objective lens cover

Specifications are taken from the AMADA product data for this item. Confirm critical dimensions with us in writing before ordering.

Comparison With Other Options

Standard 1.25 inch eyepiece with 50-degree field of view	This 62-degree model offers a wider field of view, improving sky coverage and situational awareness during observation.
Higher-end 62-degree eyepiece with 1.25 inch barrel	Same field of view and barrel size, but this entry-level version is priced lower with no additional coatings or premium materials.
2 inch eyepiece	The 1.25 inch size is compatible with smaller focusers; the 2 inch version offers a wider field but requires a larger focuser and is not interchangeable.

Use Guide

Ensure the telescope focuser accepts 1.25 inch barrels before inserting the eyepiece
Insert the eyepiece gently to avoid scratching the lens or damaging the focuser
Use the dust cover when not in use to prevent lens contamination
Clean the lens with a soft brush or lens cloth only; avoid touching the glass surface
Select the focal length based on desired magnification: shorter focal lengths increase magnification