Motion Preview

1. you should slow down your shutter speed so you can capture the movement happening in front of the camera.
2. to create motion in a photo you have to make sure your camera is secure so it doesn't move and you capture the movement , or you can move the camera to follow the subject so you get a blurry background and still capture movement.
3. it lets us choose the shutter speed and changes the rest of the settings for us, it makes it easier for us.
4. using a small aperture, decreasing the ISO, and using a neutral density filter can help compensate the long shutter speed when there may be too much light.
5.  between 1/60 sec and 1/15 sec
6.  so that it tracks the subject and captures the image well.
7.  so that its easier to capture the moving object
8. Focus on moving subjects so as your subject moves closer or move further away your camera constantly updates focus to keep the subject as sharp as possible.
9.  AI servo is good for shooting moving objects because it focuses on moving objects so you wont have to keep having to focus yourself 
10. back button focus could be good for action photography because you wont have to refocus every time you hold the shutter button because it will do it for you.
11. some of the challenges with using back button focus is that it could be confusing to get used to at first, because its a whole different thing we have to do and can be forgotten.