what do you call that camera feature that slowly captures fps?*Medical Instruments, PulseStore
It's the shutter speed setting that allows you to create the blur of light seen in those images. A shutter speed of 1 to 2 seconds is probably what I used. However, "bulb" mode is the term used to describe the ability to keep the shutter open for as long as you want. Since our camera can have a shutter speed as slow as 30 seconds, I didn't need to use bulb mode for those images.