What’s in a lens?

[Sam-D]

Some basic, but interesting information here aimed at the newcomer to photography.
Plus, there’s also a 9 minute video giving an insight into the lens manufacturing process, which may also be of interest to the more experienced photographer.

http://i.gizmodo.com/5160891/giz-explains-why-lenses-are-the-real-key-to-stunning-photos

Sam-D