Creators can use the Neewer CA170 Camera and Photo Accessory for Sigma Bf to bring more control to photo and video production. Make the next photo or video setup a little easier to manage. The Neewer CA170 Camera and Photo Accessory for Sigma Bf is made for photo and video production and fits naturally into home, studio or location setups. Compatibility covers Sigma Bf, so confirm your device model for the best fit.