Need to take a stroboscopic photo of a very short process (two balls colliding), how to take it, is an ordinary camera ok? Or what equipment do you need?

It's better to use SLR, micro-single, and card machine with manual function. Cell phones are useless.

The most important thing is to have a flash.

Shooting method:

This camera is mounted on a tripod. If not, you can put it in a fixed place.

Put away the items to be photographed in advance, take photos with the camera and focus properly. The background should be non-reflective black.

The shutter speed is slower, such as 1 sec or slower or B-door. The aperture depends on the amount of light entering the flash, generally around 8.

The flash is set to strobe at a frequency of about 20-30 times per second. This needs to be tested.

Start shooting, preferably with an assistant with a flash. Shutter with slow door or B door, open the shutter, at the same time let go of the hand holding the ball, the assistant turns on the flash, all at the same time, close the shutter.

Done, good!

The principle of shooting is to shoot the motion track of a moving object with a stroboscope within the time when the shutter is open.