Tecnosky Planetary ED 18 mm Eyepiece

Tecnosky Planetary ED 18 mm Eyepiece

Overview
The Tecnosky Planetary ED 18 mm eyepiece is made for extended visual observing. Its 5-element optical design includes ED (Extra Low Dispersion) glass for reduced chromatic aberration and improved contrast. With a 60° apparent field, it offers a relaxed and immersive view of planets and bright deep-sky targets. The 16 mm eye relief and twist-up eyecup ensure long sessions are comfortable, even for eyeglass wearers.

Technical specifications

• Focal length: 18 mm

• Apparent field: 60°

• Optical design: 5 elements with ED glass

• Coatings: FMC (Fully Multi-Coated)

• Barrel size: 1.25" (31.75 mm)

• Eye relief: 16 mm

• Eyecup: Twist-up

• Weight: 170 g

• Recommended use: Extended visual observation of planets and bright DSOs

Optical performance

• ED glass ensures balanced chromatic correction

• Soft and contrast-rich viewing

• Wide field for relaxed navigation

• High comfort for extended observing sessions

Compatible accessories

• Fits all 1.25" telescope focusers

• Compatible with 1.25" threaded filters

• Ideal for visual refractors, Newtonians and Maksutovs

Key features

• 5-element ED design

• FMC coatings for high transmission and clarity

• 16 mm eye relief and ergonomic eyecup

• Durable black anodized metal construction