【Unused】K&F True Color & Ultra-Low Reflection CPL Filter 55mm I am selling this because I sold the lens it was for before I could use it. No box. For reference, I'll include the product description from the website: Eliminates yellow cast Ultra-low reflection 0.1% Contrast and reflection adjustment High transmittance circular polarizing filter Double-sided 28-layer coating Optical glass Perfect for landscape photography (Nano-Xcel) The purchase price was around 5980 yen.