Function: 1. Used do microscopes using the CX photographic port, including some stereoscopic microscopes and newer microscopes from the T490 series. 2. Exquisite workmanship, stable and reliable performance, easy do observe the internal structure of small objects. 3. This adapter allows you to use cameras with large image sensors (class 2/3 inch by 1 inch), Practical adapter do microscope. 4. The C-mount installation method has been adopted, and the installation and replacement method is simple. 5. Selected high quality optical glass alloy materials, with good durability and stability, lightweight and compact. Specification: Item Type: adapter microscope Material: alloy optical glass Color: as shown in the picture Usage: Do microscopes using the CX photographic port, including some stereoscopic microscopes and newer T490 series microscopes. Camera Sensor Compatibility: 2/3 inch do 1 inch Compatibility: SM745T microscope (not V203 or V331) T490 Camera Mount: C Mount Adapter type: adapter do mount C Camera connection size: about 25mm/0,98inch (C mount) Microscope connection size: about 38mm/1,50inch List of packages: 1 x adapter microscope