If you are shooting at 24 frames per second you would double that to get the shutter speed to maintain the 180 degree shutter. That would be 1/48th of a second. Since dslrs don’t have that shutter speed available 1/50th works fine. Here is a link to a great explanation of why this works: https://blog.tylerginter.com/?p=385
Also there is a good overall guide at https://www.nofilmschool.com
I currently use the steadicam merlin and I love it. Just make sure the use of a steadicam furthers the story you are telling. I use a combination of steadicam, tripod, monopod with fluid head, and slider to aid in my story telling.
Wider angle lenses also help to minimize the apearance of camera shake.
I hope that helps