SIGETA 50 SERIES 17mm, 50°, 1.25" Eyepiece

SIGETA 50 SERIES 17 mm — Universal Telescope Eyepiece

Brand: SIGETA. The SIGETA 50 SERIES 17 mm eyepiece is designed for astronomy enthusiasts and field observers who seek a balance between compactness, optical quality, and ease of use. With a focal length of 17 mm, this model provides moderate magnification, making it suitable for general observations of planets, detailed study of the lunar surface, and viewing bright star clusters. This eyepiece is ideal for extended observation sessions thanks to its wide field of view and comfortable eye relief.

Design Features

• Optical design: Super Plossl — 4 elements in 2 groups, a classic Plossl configuration that ensures a clear image across the entire field.
• Internal thread for light filters — convenient for astrophotography and contrast correction.
• Fold-down rubber eyecup — provides comfort for users in various conditions, allows easy adjustment of aiming height, and is suitable for those who wear glasses.
• Rubberized body overlay — improves grip, protects against scratches, and adds reliability in field conditions.

Technical Specifications

• Magnification type: fixed.
• Focal length: 17 mm.
• Field of view: 50° — wide field for comfortable and extended observations.
• Eye relief: 13 mm — comfortable eye placement, suitable for users wearing glasses.
• Barrel diameter: 1.25" — compatibility with most amateur telescopes and adapters.
• Coating: Fully Multi-Coated — high light transmission and enhanced image contrast.

Package Contents

• SIGETA 50 SERIES 17 mm eyepiece.
• Protective caps (2 pcs.).

Dimensions and Weight

• Eyepiece weight: 53 g — lightweight and portable design for field trips.
• Eyepiece length: 52 mm — compact size for convenient transport.
• Package weight: 98 g.
• Package dimensions: 65 x 50 x 47 mm.

The SIGETA 50 SERIES 17 mm eyepiece combines a proven Super Plossl architecture (4 elements in 2 groups) with modern multi-coatings, ensuring a clear, high-contrast, and bright image. The built-in filter thread expands functionality for astrophotography or working with contrast filters. The rubberized overlay and fold-down eyecup enhance ergonomics and reliability for field use.

This eyepiece is compatible with a 1.25" barrel diameter and comes with protective caps, allowing the optics to be kept in perfect condition. The SIGETA 50 SERIES 17 mm is an excellent choice for those who need a high-quality, compact, and lightweight telescope eyepiece in the category Military equipment > Optics > Telescope accessories.

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