Sony alpha SLT-A57 Wireless Remote Shutter Release

The Remote Control acts as a wireless shutter release capable of instantly triggering the shutter without disturbing the camera. It is recommended for taking pictures of subjects that are difficult to approach, or to minimize vibration for close-ups and time exposure.

Don't let camera shake ruin a perfect shot. This wireless remote helps prevent camera movement, so your photos are crisp and clear, not blurry.