Canon has announced the development of a 200-400mm f/4L zoom to rival the hugely popular Nikon version, only this new lens features a built-in 1.4x teleconverter. With the converter applied (it has a locking mechanism from the picture below) the focal length alters to become a 280-560mm f/5.6 (we're assuming a one-stop light-loss). It's designed primarily for wildlife photographers (and especially the so-called safari crowd) but will also find favor with sports shooters. The small bulge on the side of barrel, with a lockable lever above, allows for the extender optics to be moved in and out of the optical train. The reasoning behind this? Well, Canon will have matched the converter to the lens, much like Nikon use to do with its speciailsed lenses; the 300mm f2.0 for one, but rather than supply it together (and run the risk of it being mismatched with the Mk II and Mk III converters) obviously decided the small penalty in weight and ergonomics was worth it. We shall see.
Canon announces development of a new telephoto zoom lens with an integrated extender
United Kingdom, Republic of Ireland, 7th February 2011 – Canon today announces the development of a telephoto zoom lens featuring an integrated focal length extender – the EF 200-400mm f/4L IS USM EXTENDER 1.4×. The lens will be displayed for the first time during CP+, held in Yokohama, Japan.
Designed for Canon’s leading range of EOS Digital SLR cameras, the new lens will be an ideal addition for sports and wildlife photographers, offering exceptional flexibility with a built-in 1.4× extender that creates an increased focal range of 280 – 560mm. Perfect for photographers who require high performance, fast aperture and a flexible telephoto range, the EF 200-400mm f/4L IS USM EXTENDER 1.4× will enable photographers to shoot a greater breadth of subjects using a single lens, delivering the best possible image quality at all focal lengths.
Developed as a new addition to Canon’s acclaimed L-series of professional lenses, the new lens will offer an unsurpassed combination of versatility, first-class optical performance and an enhanced weather-proof construction. The model will be released as part of Canon’s continued development of its EF lens line-up, offering enhanced performance and improved functions that cater for the needs of photographers from beginners through to professionals.