How to use a professional camera

Today we learnt how to use a professional camera, we started off by looking at all the different types of focus that we could have and what our intentions were for the different shot types.
It was explained to us that the bigger the hole is in the lenses the blurrier the picture becomes:

 

We were learning how to use 3 point lighting to make the lighting in our trailers just right so that we don't get any grainy shots, we also learnt how to use different colour lighting to enhance the genre e.g. by using red lighting we are insinuating the sense of danger which is also one of the codes and conventions of a horror trailer.