20mm Illuminated Crosshair Telescope Eyepiece 70 Degree Wide Angle

This illuminated crosshair eyepiece is designed for precise centring, smooth tracking, and accurate alignment during observation or astrophotography. With a wide 70° viewing angle and adjustable illuminated reticle, it makes fine adjustments easier and more reliable under dark skies.

Key Features

• Bright LED-illuminated single crosshair for accurate centring and guiding

• Adjustable brightness for comfortable viewing in different light conditions

• Wide 70° field of view for easier star and object positioning

• Fully multi-coated optics for sharper contrast and higher light transmission

• Fixed 20mm focal length for stable, consistent magnification

• Durable metal construction for long-term outdoor use

• Comfortable rubber eyecup reduces eye strain during extended sessions

• Standard 1.25" barrel fits most telescopes and focusers

Specifications

• Focal Length: 20mm

• Barrel Size: 1.25 inches (31.7 mm)

• Field Stop: 25mm

• Exit Pupil Distance: 16mm

• Reticle Type: Single crosshair

• Illuminator: LED with adjustable brightness

• Lens Coating: Fully multi-coated

• Lens Structure: 4 groups / 5 elements

• Focus Type: Fixed focus

• Material: Metal

• Thread: M28.5 × 0.6

• Power: 2 × 1.55V AG5 button batteries

• Weight: 221g

Package Contents

• 1 × 20mm Illuminated Crosshair Telescope Eyepiece

What Makes This a Smart Buy:
This eyepiece makes centring and guiding faster, easier, and far more accurate—especially for astrophotography and alignment work. With its wide viewing angle and illuminated reticle, it delivers excellent precision and versatility in one reliable upgrade.