Bresser 4900900

The Bresser Zenith Prism is a precision-crafted zenith prism designed for Messier telescopes, featuring a 2-inch eyepiece holder and an included adapter for 1.25-inch eyepieces. This accessory is made of durable aluminum in a black-gray finish, with dimensions of 14.5 cm in length, 6.3 cm in width, and 10 cm in height, weighing 490 grams. It rotates the image by 180 degrees to ensure an upright view, making it ideal for use with refractor, Schmidt-Cassegrain, and Maksutov-Cassegrain telescopes, where the focal point extends sufficiently beyond the optical tube. Compatibility is limited to these types of telescopes, as Newtonian reflectors typically cannot accommodate this prism due to their shorter focal points. The robust construction and precise optical alignment support reliable performance during astronomical observations and enhance user-friendliness without altering image quality. This zenith prism serves as a practical addition for astronomers looking to correct image orientation in supported telescope models, facilitating comfortable and extended observation sessions.