FotodioX Pro Lens Mount Adapter B4 to Sony FZ Mount

The Fotodiox Pro Lens Mount Adapter B4 to Sony FZ Mount allows you to use lenses that feature a B4 mount on a camera body with a Sony FZ mount, such as the Sony PMW F3, F5, and F55. The B4 mount is traditionally used on lenses designed to work with 2/3" 3-imager sensors. This is a lens mount adapter designed to attach to the lens itself; it is not meant to permanently adapt the mount of the camera. The adapter mounts to the lens and is removable, so you can use one adapter on many different lenses.

The adapter ensures the correct flange focal distance, so your infinity focus is maintained. This is strictly a mechanical adapter without any corrective optics. Featuring brass construction with a stainless steel finish, this adapter is a strong, durable unit. There is no electronic control of the lens through the adapter, so you need to use a lens that has manual focus and iris capabilities. However, the adapter allows TTL (Through-The-Lens) metering, and when using a lens with the adapter, the camera body should be set to either manual exposure or aperture priority mode.