- Play the role of gray board, also for automatic and manual lens practice.
- 18% standard gray, gray board side, with auxiliary focus scale, whiteboard side is a good accessory for tuning white balance.
- Focusing board is the benchmark for accurate detection. Colorful pictures come from the exact exposure. Exposure to may have deviation if the light of the scene is too bright or too dark.
- Focusing Board can make complicated light scene to change to the 18% neutral gray, through the light meter record the focus plate reflected light, you can get accurate exposure value.
- Size: Diameter 30 cm/11.81 in
Style: One side of gray, one side of white
Please allow 1-3 cm differs due to manual measurement