Just to remind you B17. Somewhere in your house, you will find a rectangular, box-like instrument, possibly coloured silver, or black. It will be made from high-impact plastic, or perhaps light alloy. On one side, there will be a small window, or perhaps a LCD screen, and on the top there should be one or more buttons. The front of this 'box' will be fitted with the expensive part of the apparatus, a cylinderical object containing glass elements, precisely aligned. This is known as a lens, and allows light to pass through it, which is 'collected' on a substance known as 'film', or, in a more modern 'box', a light sensitive electronic plane.
Collectively, all of these parts are known as a 'camera'.
Now, assuming that you have found this object, pick it up, point it at the diorama under construction, and take some b****y pics!!!