PolarPro Quartzline FX Filter - Fog for 77mm 1/4 lenses adds a moody atmosphere to everyday light, eliminating the overly harsh image produced by today's digital sensors. High-quality materials ensure durability and resistance to any damage, allowing you to work even under the toughest conditions. With the touch mechanism, you can quickly adjust the settings without taking your eyes off the shot. The combination of light diffusion effect and adjustable darkness in a slim frame gives your footage a cinematic touch. The filter features a secure locking mechanism for the aperture range, making it easy to control exposure and capture dreamy shots. Protective case: You don't have to worry about your filter getting damaged. It comes with a secure case made of robust materials that protects against impacts and drops, and is also waterproof. You can safeguard your filter.