You can buy a single day digital photo pass or if you are season pass holder you can buy an all season digital photo pass
The Single Day pass is $29.99 plus taxes and let you have unlimited pictures taken at the park with unlimited downloads. The pictures stay on your account for 30 days. You also get discount on prints and photo souvenirs.
You get a FunPix card (comes in a lanyard) with a QR code. You create an account online so later you can download the pictures.
Some rides also allow you to download the picture. Just scan your code at the picture kiosk after the ride look for your picture and download it to you account.