Q: Is a battery grip an accessory for an SLR/DSLR? ¶
A: Yes, and which allows the camera to hold multiple batteries to extend the battery life of the camera, and adds a vertical grip with an extra shutter release , facilitating the shooting of portrait photography.
Q: Are battery grips usually designed to fit only one or a few specific camera models? ¶
A: Yes, since they must match the body's shape, connectors, and power requirements.