It needs a aperture, compound lens, a photosensitive plate or paper, and a included box for the photosensitive paper to not get exposed by other light sources or a box that is black covered inside and out to not reflect any other light other than what comes thru the aperture or the shutter to precisely capture a amount of light to expose the film properly and not over or under expose it.
In my personal opinion art is a little easier than science since im more on the creative side :)
the answer is a natural setting
