Kasai Trading MC Zenith Prism (31.7mm)

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We are selling from Japan. Our Products are Authentic only.

★★★★★★★★★★★ Special 31.7mm zenith prism for high quality performance High-precision specifications that maintain sharp images even at high magnifications Broadband multi-coated / Reflectivity 99% or higher φ28mm aperture for ultra-wide-angle eyepieces without vignetting Equipped with M28.5 filter thread / Front and rear caps included The advantage of the zenith prism is that it has a higher reflectivity and produces a brighter image than a general zenith mirror due to "total reflection". In addition, since it is easy to maintain flatness, it can always maintain a stable high level of precision. Furthermore, the prism does not deteriorate over time, and the reflective surface does not get dirty, so a clear image is always obtained. The "cylindrical prism effect" shortens the consumed optical path length compared to a normal zenith mirror, so it is also effective when used in conjunction with accessories with a long optical path length, such as binocular devices. This product is a high-quality MC31.7mm zenith prism developed exclusively by Kasai to maximize the inherent benefits of the zenith prism. It uses a special right-angle prism that is polished with high precision and has a broadband multi-coat that shows extremely high transmittance over the entire visible light range. From low magnification to the highest magnification, you can obtain a very clear and sharp image without image quality deterioration or light loss. The inner surface of the 31.7mm barrel is fully ribbed + low-reflection black paint, so it is fully protected against internal reflection. Of course, the tip of the barrel is also equipped with an M28.5 filter thread. The aperture diameter is φ28mm, so even if you use an ultra-wide field of view and long focal length eyepiece, the field of view will not be vignetted. Please try our special 31.7mm zenith prism that shows quality performance. Optical path length: 63mm / Weight: 130g / Front and rear caps included / Barrel material: brass / Sleeve material: aluminum / Housing material: hard ABS resin