1Used for microscopes that use the CX photo port, including some stereo microscopes and the newer T490 series microscopes. 2Made of high quality alloy + optical glass material, with good durability and stability, with long service life. 3Expanding view field , 0.5x camera eyepiece can help expand the field of view, make the observation more effective. 4Exquisite workman, stable and reliable performance, easy to observe the internal structure of small objects. 5Easy to use, this adapter allows the use of cameras with large image sensors (2/3in to 1in class). Item Type: Microscope AdapterMaterial: Alloy + Optical Glass Color: As shown in the picture Application: For microscopes which use the CX photo port including some stereo microscopes and newer T490 series microscopes.Camera Sensor Compatibility: 2/3in to 1in Compatibility: SM745T Microscope (not V203 or V331) T490 Camera Mount: C mount Adapter Type: C Mount Adapter Camera Connect Size: Approx.25mm / 0.98in (C Mount) Microscope Connect Size: Approx.38mm / 1.50in 1 x Microscope Adapter 1 x Wrench The lens is fragile, pay attention to bumps