three, but they are large in price as well. you can find large format cameras for as expensive as $5,000 or more depending on the brand you're looking at. these cameras are obviously fit for professional photographers!
you can start out at any level you please, but make sure if you buy a camera that is $5,000 that you know you're going to use it, you are going to know how to use it, and you're going to really get your money out of using it! i took the middle road and bought a medium format camera because i knew i wanted to be a professional photographer eventually and i wanted 