Features The main material of portable lens adapter is aluminum alloy, that is lightweight for carrying, installing. This stereo microscope camera adapter has a interface for microscope connection and a c-mount interface for other attachment. Our replaceable lens connector is at the 38mm / 1.5in microscope connection and 23.2mm / 0.9in camera connection, that is suitable for trinocular microscope. The trinocular microscope lens adapter is a good choice or gift for wide application. Customer Service. If there are any questions, please feel free to contact us. Specification:   Item Type: Lens Adapter Material: Aluminum Alloy Optional Type: 23.2mm 23.2mm Camera Interface: Approx. 23.2mm / 0.9in 23.2mm Microscope Connection Diameter Approx. 38mm /  1.5in Package List:  1 x Lens Adapter  Package List