This is a 0.5x Reducing lens, which expands the camera's field of view.It can be used with C-Mount or -Mount camera in any pixel and placed in a binocular or trinocular microscope to expand its field of view. Can be installed directly in the biological or stereo eyepiece camera.Support systems :Win XP/Win7/Win10/win11 Linux / Android (Devices that comply with the UVC protocol) OS X10.4.8 or later (Devices that comply with the UVC protocol) Scope of application: Industrial vision, visual inspection, microscope, astronomical telescope, intelligent terminal equipment, face recognition, advertising machine, dish recognition, smart vending camera, electronic weighing object recognition 0.5x adapter Specification:This is a 0.5x Reducing lens, which expands the camera's field of view. It can be used with C-Mount or -Mount camera in any pixel and placed in a binocular or trinocular microscope to expand its field of view. Can be installed directly in the biological or stereo eyepiece camera. Scope of application:Industrial vision, visual inspection, microscope, astronomical telescope, intelligent terminal equipment, face recognition, advertising machine, dish recognition, smart vending camera, electronic weighing object recognition Magnification: 0.5X Mounting Size: 23.2mm, 30mm ,30.5mm Suit Microscope: biological microscope and stereo microscope 4K 3.0 USB Camera Specification: Image sensor: 1 / 2.5inch color 317 CMOS image sensor Pixels size: 1.62m x 1.62m Camera interface size:25mm (C-mount) The response: 400~700nm Scan mode: scan Pure hardware 8 megapixel image sensor, no compression, no interpolation Resolution: 3840x2160@30fps 2592x1944@30fps,2048x1536@30fps,1920x1080@60fps 1600x1200@60fps, 1280x1024@60fps,640X480@60fps White Balance: Auto / al Support UVC:USB Video Class(UVC) B value setting Auto Exposure Control: Auto / Manual Image output: USB 3.0, 5Gbit / s Operating temperature: -30 C ~ 75 Working current: 200mA Support systems :Win XP/Win7/Win10/win11 Linux / Android (Devices that comply with the UVC protocol) OS X10.4.8 or later (Devices that comply with the UVC protocol) Preservable parameters Brightness, Contrast, Color saturation,Hue, Sharpness, Gamma, Gain, White Balance, Backlight Contrast, Exposure Colour:As Shown Material:Metal Package Contents: 1 x 4K Microscope Camera (USB 3.0) 1 x USB Cable 1 x 0.5X C-MOUNT adapter 1 x 23.2mm to 30mm adapter ring 1 x 23.2mm to 30.5mm adapter ring 1 x English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.