Sigma RS-31 Remote Controller allows the photographer to take self-portraits or get into group shots. Used in conjunction with the Mirror Lock-Up function, it can reduce the possibility of image-blurring camera shake, making it particularly useful for macro or telephoto shooting.
Reviewed by 3 customers
Since this unit works with infrared light, it needs to be within the "line of sight" of the cameras remote sensor. For better or worse this sensor is located in the front of the camera. This makes the remote good for taking group photos (including the photographer in the shot), but imposible when standing in back, or on one side of, the camera. Nonethless, the remote is well built and I expect it will function (for what it is designed to do) for many years.
This remote,used in conjunction with the mirror lockup and a tripod,cuts shake and vibration.Its also great for self portraits or including yourself in the picture.The price is low,and Adorama shipped it immediately.
This product is great to control camera shake, self portraits and ware hands free operation is required.