Hand-held Collapsible Tri-fold Reflector + Gray CardWhite Balance Digital Target Combo Disc

Portable Reflector Gray Card Photographic White/ black Balance Focus Board Studio Supplies It can be an 18% gray card, which can help you check grayscale, All gray and white surfaces of this focusing board have their own functions. The 18% gray surface can control the exposure value, the white surface can balance the color, and the target mark can accurately measure the center, The focusing board can help you to restore the color truly and perfectly by measuring the exposure value, white / gray balance value and color temperature.