Technique

Continuous release isn’t just useful for fast moving subjects, it’s also handy for times when you just barely have enough shutter speed to get a sharp image while hand holding.

Pressing or releasing the shutter button, regardless of how smooth you try to be or what technique you use, you will always move the camera a little bit. However, once you’re holding the shutter release down that motion is gone. In many cases this can make the difference between a sharp image and a slightly blurry soft one.

An example of how low you can go is evidenced here with sharp images being made at shutter speeds as low as 1/80th of a second with a 640mm effective focal length.