Canon 100-400mm Lenses
Canon 100-400mm Lenses100-400mm Lens: Canon 100-400mm L lens: Surf and sport lens of champions
There are now two lenses in the Canon 100-400mm range. Over time the first 100-400 will be phased out in favour of the new 100-400mm II. Why? Well the new II version has one major advantage and that is in how it zooms. The original 100-400mm required you to extend the lens like a shot gun to zoom out from 100mm to 400mm. In doing do air needed to be taken in or the lens would form a vacuum and the pressure wouldnt allow you to zoom at all. The downside is clear when you think about the salty air for example that would be sucked in when using the lens at the beach or the dust if in the outback and so on. The Version II lens merely rotates to zoom like most of the other Canon telephoto zoom lenses.
Clear as mud? If you arent sure please do give us a call so we can help you choose the best Canon lens for your purposes. The following video demonstrates the existing array of Canon high powered ( as opposed to Standard Zoom Lenses) all in the same youtube clip.