Where innovation meets functionality, the Vizelex Polar Throttle Lens Mount Adapter is a game-changer for photographers. This high-quality adapter is designed to seamlessly connect Canon Fd and Fl 35mm Slr lenses to Sony Alpha E-Mount mirrorless camera bodies, expanding your photographic possibilities. One of its standout features is the built-in circular polarizing filter, a unique addition that eliminates the need for carrying around a bag full of filters. This user-friendly feature allows for easy and convenient image control over any lens you attach, reducing glare and enhancing the overall quality of your images. The Vizelex Polar Throttle Lens Mount Adapter is a versatile tool, offering compatibility with a wide range of mirrorless, Dslr, and film cameras. However, it's important to note that this is a manual adapter. As such, lens functions that rely on electronic communication with the camera body, such as autofocus, Ae metering, and image stabilization, will be disrupted.