Analog film photography and cameras

I was always told during my photography A-level that the slowest you can go without camera shake is about 1/60.

if you're careful, like able to hold the camera quite still, 1/30 is possible.

the slowest you can go without camera shake is 1/250th to be honest, 1/60 is fine if you're reasonably still, but not really when there's a handful of movement/vibration.