The different types, their power and magnification.


1. Intro to Lenses

This short video covers some of the terminology you need to know when learning about lenses over the next few videos.


2. Converging vs Diverging

Converging (convex) and diverging (concave) lenses explained.


3. Power of a Lens

The more powerful a lens is, the more bending ability it has.


4. Magnification of a Lens

The magnification can be calculated by dividing the image height by the height of the object. We can also calculate it as the ratio of 'v' to 'u'.


5. Lens Equation

You may be familiar with the equation linking 'f', 'u' and 'v'. In this videos I show you where this equation comes from.