Some of the cheaper cable release options work fine, although for a little more, you can purchase a wireless option that reduces the risk of interference and camera shake even further.
These are inexpensive, and there is no real guidance on the best ones to buy. Some of the cheaper cable release options work fine, although for a little more, you can purchase a wireless option that reduces the risk of interference and camera shake even further. Just plug it into the designated port in your camera and press the button on the release instead of the one on the camera.