William Optics 2" 90-deg Erecting Prism Diagonal

Description

William Optics 2" 90-deg Erecting Prism Diagonal.
This new 2" 90 deg. erecting prism by William Optics is our reply to your needs! High quality prism, coating and finish, for good correct-image views of celestial objects. Perfect for daytime observations. Will turn your refractor into a 24/7 friend! This prism is particularly suitable for astronomical usage.
Precision Prism
• Image erecting BaK4 prism with anti-reflection coating.
• Fully multi-coated.
• Minimized light loss and high accuracy to make possible critical night-time observations.
Superior Craftsmanship
• Internally matte blackened and threaded for no internal stray light reflection.
• Threaded for 2" filters.
Ready to Go
• 1.25" adapter with brass compression ring included in the price.
• Large, chromed thumbscrews.
Beautiful Finish
• Entirely aluminum, black anodized.
• Silver sandblast finish with William Optics logo laser engraved.
Features
• Prism: High quality BAK4 with new FMC coating
• Materials: Entirely machined aluminum
• Angle: 90 degree
• Prism clear aperture: 40mm
• 2"-1.25" adapter with brass compression rings
• Weight: 19.8 oz