Eyepieces Large Field 66° Sky Watcher - Focal lengths of 6mm to 20mm

Enhance your observations with Sky-Watcher's 66° wide angle eyepiece range. Designed to offer a large field of view and superior optical quality, these eyepieces are ideal for exploring the deep sky and observing planets with increased precision.

Features:

• Apparent Field: 66°
• Available Focal Lengths: 6mm, 9mm, 15mm, 20mm
• Filter Size: 31.75mm (1.25")
• Optical Design: 6 lenses in 3 groups (improved Erfle type)
• Generous Eye Relief: From 13mm to 18mm depending on the focal length
• Multilayer Anti-Reflection Coating on each lens for excellent light transmission
• Retractable Eyecup for optimal comfort
• No Threads for 31.75mm format filters

Advantages:

• Extended Field of View: Enjoy a large field of view, ideal for tracking celestial objects without motorization.
• User Comfort: A significant eye relief offers comfortable observation, even for glasses wearers.
• Superior Optical Quality: The 6-lens design corrects chromatic aberration for clear and contrasted images.
• Lightweight and Compact: Compact design and lightweight construction facilitate transport and use.

Usage Tips:

• Focal Length Choice:
  • 6mm and 9mm: Perfect for detailed observations of planets and the Moon with high magnification.
  • 15mm and 20mm: Ideal for deep sky objects and extended objects thanks to a large field of view.
• Use with Filters: Combine them with astronomical filters to improve contrast and reveal more details.