Anwenk 12x12 Inch (30x30cm) Grey Card White Balance Card for Photography 18% Exposure Gray Reflectance Reflector Foldable Focus Board Double Sided with Carry Pouch 12"x12" electronics_best_sellers_Jan2025 SUPER LOUD--- Compared to pealess

SUPER LOUD--- Compared to pealess whistle

mixing consoles and other equipment

as demonstrated in the listing photo

brightness 600 lumens

Anwenk 12x12 Inch (30x30cm) Grey Card White Balance Card for Photography 18% Exposure Gray Reflectance Reflector Foldable Focus Board Double Sided with Carry Pouch 12"x12" electronics_best_sellers_Jan2025 SUPER LOUD--- Compared to pealessAnwenk 12x12 Inch (30x30cm) Grey Card White Balance Card for Photography 18% Exposure Gray Reflectance Reflector Foldable Focus Board Double Sided with Carry Pouch Collapsible 12 Inch Grey White Balance Card for Photography 18% Exposure Neutral Balance Card with Carry Pouch This grey balance white balance card works to provide standard reference object for exposure determination in photography, remove color cast and achieve an accurate color