39MM UV Filter Ultra Slim Japan Optics Multi Coated Ultraviolet Protection Lens Filter

SKU: KF01.K39

Q
What does cnc trepizoidal pattern frame means, and what's the benefit?
Answer Question
A
new technology i guess, cnc Trapezoidal thread forms are screw thread profiles with trapezoidal outlines which helps more friction when screwing. Very easy to install.