The Skywatcher ED120 0.85x Focal Length Limiter is an essential optical accessory for amateur and professional astronomers. It is designed to reduce the focal length of Sky-Watcher ED120 series telescopes by 0.85x.

This product is specifically optimized for Sky-Watcher ProED 120 and Evostar 120 ED APO refractor telescopes, allowing users to achieve a wider field of view while maintaining high image quality.

• Enhanced Optics: The limiter reduces the focal ratio from f/7.5 to approximately f/6.3, decreasing exposure times.
• Improved Image Quality: It enhances edge correction, minimizes distortion, and provides clear images across the entire optical field.
• Detailed Imaging: The result is sharp and accurate stars, ideal for deep sky astrophotography.

• Reduction Factor: 0.85x focal length
• Back Focus Distance: 55 mm
• Thread Size: M48 (48mm T-thread)
• Weight: Approximately 317 grams

This focal length limiter is a must-have for astrophotographers looking to enhance their imaging capabilities and achieve beautiful, sharp images without sacrificing performance.