TS Optics Crosshair Erfle Eyepiece 20mm 1,25" (48124)

The TS Optics Crosshair Erfle Eyepiece 20mm 1.25" is designed for astronomers who need both wide-field viewing and precise guiding capabilities. This eyepiece combines the excellent image quality and comfort of the TSWA Erfle wide-angle series with a finely laser-engraved crosshair reticle, making it ideal for guiding during astrophotography or for accurate centering of objects. The crosshair lines are visible against the night sky, and with an optional illuminator, the reticle can glow faint red even under very dark conditions. This makes the eyepiece versatile for use in a variety of observing environments.

This eyepiece is an excellent choice for anyone needing wide-field views with the added benefit of a crosshair for guiding or object alignment, offering both comfort and precision in one accessory.

Optical Specifications

• Focal length: 20 mm

• Apparent field of view: 70°

• Eye relief: 17 mm

• Coating: Multiple coatings

Compatibility and Features

• Connection to telescope: 1.25"

• Filter thread: Yes

• Thread: M8 (for optional illuminator)

• Illuminated: No (can be added with optional illuminator)

• Adjustable eyepiece cup: Yes (folding)

General Information

• Type: Eyepiece

• Build type: Reticle eyepiece