Have you wondered why camera lenses are so expensive? Aren’t they just pieces of glass?
Pros and amateurs alike are often baffled by the prohibitive cost of high performance lenses which can easily cost several times more than the camera itself.
Here’s a video that briefly takes you through the lens manufacturing process at Canon. The video itself isn’t terribly exciting to watch. But it does give you an insight to the complexity of the lens manufacturing process.
By the way, the Canon EF 500mm lens featured on the video sells for about $9500.00 USD.