Sometimes you need more than a simple adapter to mount a lens onto a camera - you need real power. Seize control over the electronic features of your lenses with a FUSION lens adapter. The FUSION technology built into the adapter enables electronic communication between mixed lens and camera platforms. FUSION adapters enable auto focus, aperture control, image stabilization, and more. Different lenses may exhibit different operating characteristics depending on lens age and manufacturer, we recommend testing individual lenses in your setup before critical shoots. The Vizelex ND Throttle is well known for having a built-in variable neutral density filter that offers 1 to 8 stops of light reduction. This concept in adapters has been praised by film makers and now Fotodiox has optimized the adapter for that same crowd. The new Vizelex Cine ND Throttle now feature a geared rotating ring for more precise ND selections and can be used with follow focus accessories. Fotodiox adapters are manufactured with precise tolerances, providing a solid, gap free, no wiggle connection for stress free use with chrome plated brass mounts for enhanced durability and reliability. Compatible with Sony Alpha E-Mount Cameras: Sony Alpha α7/7R/7S, α7/7R/7S II, α7/7R/7S III, α7R IV, α9, α9 II Sony Alpha a5000, a5100, a6000, a6100, a6300, a6400, a6500, a6600 Sony Alpha NEX-3, NEX-5/5N/5R/5T, NEX-6, NEX-7, NEX-C3, NEX-F3 Notes: Some lenses will have slow auto focus, or no auto focus at all. (especially third party lenses) Switching between image and video can cause camera to freeze. When switching f stops in video mode can cause white flashes in video. All pictures are for illustration purposes only.