>>2885962Just to simplify it for you higher speed means more light but also means more grain
Using a slower speed film will give you less grain but you'll need more light to properly expose it
Superia 200 or 400 sit in a nice spot where you wont have that much grain and don't have to worry about having a ton of light to get a proper exposure
After you get into it more you can learn about pushing film which is where you set the speed on the camera to faster than what it's listed as which is known as pushing the film. This is a picture taken on superia 200 pushed to 800
