Meike EFTR-071XL Lens Locking Mount Adapter Speed Booster 0.71x Focal Reduction Lens Mount Converter Speedbooster for Canon EF Mount Lenses to Canon APS-C Cameras EOS R7 R10

Use this adapter when mount a EF series lens with Canon RF S35 movie camera or APS-C camera such as EOS R10 Speedbooster lens mount adapter, can increase the lens 1 f-stop, increasing the amount of light into the virtual background, can better highlight the theme, features electronic contacts, support EF series lens auto focus and vibration compensation. Locking mount adapter speed booster, allows the aperture to be increased by one stop while the focal length is reduced (Equivalent Focal Length Focal Length x 0.71 x 1.6), increasing the lens' 1 f-stop, resulting in better bokeh in photos. Gasket increase or decrease, after use, if the focus distance does not match after it is used with the lens, you can increase or decrease the gasket adjustment, the gasket needs to be placed flat, otherwise it will affect the picture quality. The lens Loocking mount and camera mount of this adapter is made of metal, makes the item durable, waterdrop resistance and dust resistance, is easy carry when you outdoor shoot, product weight only 163g.