Sizes and coatings are available upon your request. You could send us your specifications or drawings. We will be happy to return a quotation ASAP as the average response time is within 24 hours. Meanwhile our optical designers are always available to assist with your special needs, and our factories in China are ready to meet your quantity requirements. Depending on prism orientation, images will be inverted, but correct left-to-right. If a right angle prism is rotated 90º, images viewed through the prism will be erect, but reversed let-to-right. Features: 1) Used to achieve a 90 degrees light path bend 2) Used in combination for image/beam displacement Specifications: 1) Material: BK7, or as requested 2) Dimensional tolerance: ±0.1mm 3) Surface quality: 60 - 40, or as requested 4) Angle tolerance: ±2 arc minutes 5) Hypotenuse: aluminized, over-coated with Inconel and black paint (only as noted) 6) Dimensional tolerance: +0/-0.1mm 7) Surface accuracy: 1/2 8) Bevel: 0.3mm x 45 degrees 9) AR coating: entrance and exit surfaces are AR coated 1/4MgF2 at 550N.m (only as noted)