Flash equipment can be as big of an investment as you choose, but you certainly don’t need to spend a fortune to get started. I recommend starting with the very basics. You just need the foundational pieces – a light, modifier, light stand, and trigger. You can continue to add more equipment as you progress. I have always used a simple one-light setup for both my studio and lifestyle newborn work. I have added a few different kinds lights to my inventory over the years, but I can’t say that it was necessary. Sometimes it’s just fun to buy a new toy!