About this product
William Optics 45° Erecting Prism will work with 1.25" eyepieces and telescopes with 1.25" eyepiece holders. It turns upside-down views right-side-up and gives correct left-to-right orientation.
- Large, high-quality BAK4 erecting prism with anti-reflection coating for brightness and contrast.
- Brass anti-marring compression ring.
- Baffles and internal blackening prevent internal reflections.
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