The SVBONY SV223 1.25″ Clicklock Diagonal is a precision 90-degree dielectric mirror diagonal designed for high-contrast astronomical observing. Featuring a >99% reflective dielectric coating and a secure Clicklock clamping system, it delivers bright, sharp views while ensuring stable eyepiece support.

Key Features

• >99% Dielectric Mirror Coating
  High-precision optical mirror with enhanced dielectric coating maximises reflectivity and contrast for planetary, lunar, and deep-sky observation.
• Clicklock Eyepiece Clamping System
  Clicklock mechanism provides fast, even clamping of 1.25″ eyepieces and accessories, eliminating tilt and wobble.
• Comfortable 90° Viewing Angle
  Right-angle design improves observing ergonomics, reducing neck strain during extended sessions.
• Lightweight CNC-Machined Aluminium Body
  Precision machining with internal anti-reflection baffling improves contrast while keeping weight low.
• Accessory Protection Features
  Internal safety stop and compression ring protect eyepieces and prevent accidental contact with the mirror surface.

Clicklock Locking Mechanism

The Clicklock system evenly grips accessories around their circumference, providing a firm hold without damaging barrels. This ensures consistent optical alignment and stable viewing.

High-Precision Dielectric Mirror

The thick optical mirror substrate and dielectric coating deliver excellent durability and optical performance, maintaining brightness and contrast over long-term use.

Image Orientation & Use

As with all mirror diagonals, the SV223 produces an upright image with left-right reversal. This orientation is ideal for astronomical observation but not intended for terrestrial viewing requiring true image orientation.

Accessory Compatibility

Compatible with standard 1.25″ eyepieces, Barlow lenses, and imaging accessories, making it a versatile upgrade for a wide range of telescopes.

Typical Use Cases

• Planetary and lunar observing
• Deep-sky visual observation
• Refractors and compact catadioptric telescopes
• Lightweight visual setups

Key Specifications

• Diagonal size: 1.25″
• Angle: 90°
• Reflectivity: >99% dielectric coating
• Clamping: Clicklock compression system
• Construction: CNC-machined aluminium

Compatibility Notes

• For telescopes with 1.25″ focusers
• Supports heavy eyepieces securely within 1.25″ format
• Mirror diagonal (image is laterally reversed)