How to use the photo gray card?

First find the white balance and AWB in the camera, and select the automatic mode; Place the gray card next to the product, select the focusing mode of the lens as manual focusing, and the gray surface of MF gray card fills the viewfinder to shoot the whole gray card; Select custom white balance from the menu; Select the gray card photo just taken and confirm it; Enter the white balance again and select Custom White Balance.

Digital camera, English full name: DigitalStillCamera(DSC), abbreviated as: DigitalCamera(DC), is the abbreviation of digital camera, also known as: digital camera. Digital camera is a kind of camera that uses electronic sensors to convert optical images into electronic data. According to the use, it is divided into: SLR camera, micro camera, card camera, telephoto camera and household camera. The principle of digital camera recording images on film through silver bromide's chemical changes is different from that of ordinary cameras. The sensor of digital camera is photosensitive charge coupled device (CCD) or complementary metal oxide semiconductor (CMOS). Before an image is transmitted to a computer, it is usually stored in a digital storage device (usually using flash memory; Floppy disks and rewritable compact discs (CD-RW) are rarely used in digital camera equipment.