Product description
This 1.25″ 90 deg. erecting prism will very useful for daytime observations with the William Optics Apochromatic refractor AP 51/250 RedCat 51 V2.5 OTA
- Image erecting BAK4 prism with anti-reflection coating.
- High accuracy and high light transmission prism.
- 1.25” barrel for any 1.25” eyepieces.
- Internally matte blackened and threaded for no internal stray light reflection.




















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