Used, as everyone knows. A gem that came out while cleaning. Manufacturer: Kenko Product Name: Color Temperature Conversion Filter W2 Diameter Size: Φ55mm Color: Amber-toned filter Purpose: Light during cloudy or rainy weather has a high color temperature, causing the entire screen to appear strongly blue. Effect: Decreases color temperature → For shooting in shade, cloudy, or rainy weather (For slight correction) Condition: Near new → Only opened, and briefly attached to a lens. Photo ①: Case exterior, front Photo ②: Back Photo ③: Label, diameter size and type notation Photo ④: Filter exterior Photo ⑤: Case interior (label removed) A must-have item for shooting with reversal film, etc.