The beneficial of the zenchi prism is "fully reflective" compared to common zenith mirrors and provides bright images. It is also easy to hold flat surfaces so you can always maintain a stable and high precision. In addition, the prism will not deteriorate over time and the reflective surface is not dirty, so you can always get a clear image. The "cylindrical prism effect" results in shorter light transmission than the normal zenith mirror, so it is effective when used with accessories with large optical paths such as binocular equipment.
This product is a high quality MC31.7 mmm zenith prism developed by Kasai, in order to bring out the best of the original benefits of the Zenchi prisms. It adopts a specially made right angle prism with broadband multi-coated to ensure high transparency throughout the visible light range. From low magnification to maximum magnification, you will get a crisp, sharp image without image degradation or light loss The inner surface of the 1.2 inch (31.7 mm) barrel has a low-reflective black coating to provide excellent reflection protection. Of course, the barrel tip is also equipped with a M28.5 filter thread. The opening diameter is 1.1 inches (28 mm) wide, so the field of vision will not be visible even when using the ultra-wide field of view and long focus eyepieces. Try our exclusive 31.7mm zenith prism that shows high quality performance at a low price.
Optical path length: 2.5 inches (63 mm); Weight: 4.6 oz (130 g); Front and back cap included; Barrel material: Brass; Sleeve material: Aluminum; Housing material: Hard ABS resin.