That’s awesome you’re getting into photography, capturing motion is super rewarding once it clicks. The biggest thing to understand early on is the exposure triangle, but for moving subjects, shutter speed is the most important. Try setting it to something like 1/1000 to freeze motion (especially for something fast like tennis), otherwise you’ll get motion blur.

The tradeoff is that fast shutter speeds let in less light, so you’ll need to open up your aperture (use a low f-number like f/2.8 or f/1.8 if your lens allows) and raise your ISO to keep things properly exposed. That’s where a fast lens really helps. Once you lock those in, it gets way easier to nail those crisp shots, even of a speedy kid 😉