how does a photo negative get resized?

Question

I looked up the process for developing pictures yourself, and I’m confused on what part of the process takes the negative from the roll, which is like what, an inch or so, and then enlarges it to become a 4×6 picture.

So how does it happen? What part of the developing process makes this happen?

In: Other

Answer 1

It’s magnified with an enlarger, similar to how a movie projector will have light passing through a 35mm (or 70mm or whatever the film size is) onto a lens that magnifies and projects that tiny ass image on a big ass screen.