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William Optics 1.25" 90° Erect Prism for Cat 61 WIFD
High quality erecting prism with Red anodized plate, the complete housing is made by 6061T Aluminium by CNC. This 1.25" 90 deg. erecting prism will very useful for daytime observations.
Image erecting BAK4 prism with anti-reflection coating.
High accuracy and high light transmission prism.
1.25” barrel for any 1.25” eyepieces.
Unique design & Superior Craftsmanship
Internally matte blackened and threaded for no internal stray light reflection.
