William Optics 2" 90-deg Erecting Prism Diagonal
Contiguous US Customers:
All items we sell ship for free within the Contiguous US. Shipping will be via the cheapest shipping method which will vary depending on the items in your order. During checkout, you may also be shown other optional faster shipping choices.
US Customers in Hawaii and Alaska:
Free shipping applies to almost all products. A few large telescopes and mounts are excluded from this free shipping offer. For these items, please contact us to obtain a shipping quote before you check out using the online shopping cart.
International Customers:
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Product Details
You hate reversed views of your star diagonal but no prism will do it for you?
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
