The first time a new photographer encounters the price tag on some of Canon’s super telephoto lenses they quite often suffer from sticker shock at the price of entry. Just why does it cost more than $6000 Australian dollars for a 300mm F2.8L lens, more than $8000 for a 500mm F4 and more than a whopping $15,000 for an 800mm F5.6 lens?
These three videos show just what goes into the construction of the Canon EF 500mm F4L IS USM lens and gives a greater appreciation of the complex construction process, attention to quality and cost of ownership.
Canon Lens Production – Part One
Canon Lens Production – Part Two
Canon Lens Production – Part Three
www.WILDNATUREPHOTOTRAVEL.com 
the amount of effort required to produce the optical elements is staggering
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