Sony's lens adapter adds a mirror to mirrorless cameras. Yet another leaked new product from Sony, and yet another new lens adapter, only this time one with a twist. Or rather, one with a mirror.
The LA-EA2 lets you put Sony's big Alpha SLR lenses onto smaller NEX cameras. This usually entails little more than making a tube with the correct fittings for lans and body. Sony's smart take is to put a translucent mirror in there to skim a little bit of light from the image traveling to the camera. This is then sent to a phase-detection autofocus sensor in the base.
Thus, you get fast, SLR-speed focussing with a tiny, mirrorless camera.
Gadget Lab, Leaked Sony Lens Adapter Has Mirror and Speed-Boosting AF Sensor
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