First of all, we need to define the term lens for the question to be totally clear and accurate.
A camera lens (also known as photographic lens) is an optical lens or assembly of lenses. [Source]
I need to study photographic lenses and the photographic camera for a project for physics. I want to do some research by myself, but I need a starting point.
Below is the construction diagram of a Nikon 50mm f/1.4D:
My questions, because there are actually more:
- What kind of lenses are L3 and L4?
- The focal length of this lens (50mm) represents the focal length of the system of lenses, or something else?
- How can I precisely analyze this system of lenses? I searched on Google, but seems to be no physics information about the lenses inside a photographic lens? I would like to actually draw the lenses system's diagram and analyze them mathematically/physically.
So what should be my direction?
Thank you for your time!
P.S. My level of optics is not very high, because this is the second year I study it (I've just began high-school).