50mm f/4 Guide Scope Refractor Telescope Optical Tube

This compact guide scope is a versatile addition to any astronomy or astrophotography setup. Designed for accurate guiding and easy visual alignment, it helps improve tracking precision while remaining lightweight, durable and simple to mount.

Key Features

• 50mm aperture with fast f/4 optics for bright, clear guiding performance

• Fully multi-coated lens enhances contrast and light transmission

• Crayford-style focuser delivers smooth, precise focusing

• Multifunctional design works as a guide scope, finder scope or viewing scope

• All-metal aluminium body for strength, stability and long-term use

• Blackened internal finish reduces stray light and improves image clarity

• Compatible with guiding cameras and standard eyepieces

• Includes mounting hardware for quick and secure installation

Specifications

• Aperture: 50mm

• Focal length: 200mm

• Focal ratio: f/4

• Lens coating: Fully multi-coated

• Focuser type: Crayford-style

• Focuser travel: 35mm

• Focuser load capacity: Up to 2kg

• Connection interface: 1.25 inch / M42 × 0.75

• Tube material: Aluminium alloy

• Tube length: Approx. 227mm

Package Contents

• 1 × 50mm f/4 Guide Scope Optical Tube

• 1 × Tube Rings

• 1 × Dovetail Rail

What Makes This a Smart Buy:
With its fast optics, solid metal construction and flexible mounting options, this guide scope delivers reliable performance for both guiding and alignment. It’s a practical, great-value upgrade that improves tracking accuracy without adding unnecessary weight or complexity.