This high-quality zenith prism T-2/90 degrees with a 32 mm prism is machined with a sturdy, rigid metal body. It is nice and compact for minimum path-length. The connection objective side is a T-2 internal thread and the connection eyepiece is a T-2 external thread. This prism is excellent for use with Baader's Maxbright Binoviewer. However, this diagonal is extremely versatile and can be designed to fit your needs perfectly, since it is provided without any adapters.