The 52mm STALTONE BLUE filter achieves an animation-like color tone. This filter suppresses highlights, brightens shadows, and creates a refreshing, nostalgic atmosphere with a blue tint. Used about twice. It's been about 3 years since I bought it, but the filter itself is clean and without scratches due to infrequent use. There are some scuffs on the edge that contacts the lens. - Brand: Kenko - Model Name: STALTONE BLUE - Size: 52mm - Made in Japan Thank you for looking.