0.72x Focal Reducer Speed Booster Adapter for Sony Alpha Minolta AF mount lens to Sony E mount APS-C - NEX-7 A6300 extension tube Press power switch 3 seconds

Press power switch 3 seconds to switch on / off light

The length of this adapter is 28mm(min

For using Micro Four Thirds (m4/3) mount mirrorless digital cameras with all Praktica B mount lenses

Shipping charges of DHL and FedEx from Hong Kong are excluded (paid by buyer for overseas shipment) if battery and A/C adapter are needed

0.72x Focal Reducer Speed Booster Adapter for Sony Alpha Minolta AF mount lens to Sony E mount APS-C - NEX-7 A6300 extension tube Press power switch 3 seconds0. 72x optical glass lens adapter for using Sony NEX (E) mount APS C digital cameras with Sony A Minolta AF mount lenses. Reduces focal length to 0. 72, adjust the image size to near 1: 1, so that the focal length of the image is close to actual focal length of the lens, e. g. 50mm x 1. 5 x 0. 72 = 54mm. Helps to increase the maximum aperture to 1 stop, also can use it faster by 1 stop. Switching camera to "Release w o lens" mode is essential. Allows