MD-Sony E Speed Booster Focal Reducer Adapter

Pixco MD Lens to Sony E Mount Speed Booster Focal Reducer Lens Adapter Why need to use speed booster/focal reducer adapter?It converts full-frame lenses into APS-C lenses. The advantage is to get the full frame field of view onto the APS-C sensor.Feature:Increase exposure to 1 stop, and you can use a faster shutter speed to shoot an image. Works fine, closely combined with the bayonet smooth, like the original lens. Full manual operation, manual focus, manual iris adjustment can be achieved with body manual exposure, aperture priority exposure, combined infinite focus.Specification:Max. f-stop pass through: 1.4Optical design (lenses / groups): 4/3Focal length extension: 0.7xImage diameter (mm): 28.5Bayonet front: 135 full frame lensBayonet back: Sony NEX / Fuji X / Micro 4/3Note:You must set the camera to "Shooting without lens" mode to ON before use. Avoid direct shooting to light sources, or otherwise, blue spot occurs.Compatible with:Minolta MD LensSony NEX E Mount CameraA7 III/A7R