Ultiquest Technologies also offers BK7 Dove Prisms and Roof prisms with low cost. For more, pls refer to http://www.ultiquestcom.com/products/optics/prisms_dove.html ...

Roof prisms are also called “right angle roof prisms”or “Amici prisms”. In passing through the prism, the image is both deflected top-to-bottom and right-to-left. The hypotenuse of the prism utilizes ...