HPDL Folding into the warehouse Kallio white balance gray card 18% photography gray card focus board focus screen 30CM white balance board

Description:

This Focus Board has two sides, one is 18% gray, the other side is white.
All gray, target "+" mark and white surfaces of this focus board have their own function. Whatever you used in film or digital photography, the 18% gray side can control expose value, the white side can balance the color and the target "+" mark can provide accurate center photometric.
This focus board helps to revert the color truly and perfectly by measuring the exposure value, white/gray balance value and color temperature.
Provides a great advantage when working under pressure in events such as weddings or parades.
It is the ideal accessory of the portrait, flower and conversion shoots
Specification :
Material: PU, could be cleaning with water, with a nylon carry case
Size: 30 x 30cm/12 x 12"
Quantity: 1 PC
Package includes:
1 x Focus Board with Gray/White Side
1 x Carrying bag