2 PCS 3 In 1 White Balance Gray Card 18% Photography Gray Board 30CM Focusing Board

Description:
1. Material: soft light, manganese steel
2. Size: 30CMx30CM
3. Weight: 90 grams
4. Function: one side of the product is gray, one side is white, one side is used for accurate exposure, and one side is used for setting white balance. If your photo is always taken too dark or too bright, and the photo color is always blue or yellow, Use this.
5. Simple usage: first place the gray card in the place where you want to shoot, fill him with the lens, measure the light, note the aperture and shutter value, and use manual exposure. In the future, you do n’t need to set exposure compensation for any color. This exposure parameter so that you do n’t shoot white to gray or black to dark gray