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William Optics 1.25" 45° Erect Prism
Convert your telescope into a powerful tool for terrestrial viewing with the William Optics 1.25" 45° Erect Image Prism. Watch the detailed video below to explore all the features of this high-quality William Optics accessory!
The William Optics 1.25" Erect Prism uses a large internal BK4 prism that’s fully coated with anti-reflection layers to enhance brightness and clarity.
A robust brass compression ring ensures a secure fit for all 1.25" eyepieces without marring.
The body of the Erect Image Diagonal is precisely machined from aluminum and finished with a sleek black anodizing.
All internal surfaces are fully baffled and blackened to reduce stray light and maximize contrast.