Canon EF 200-400mm f/4 IS USM Extender 1.4X review: does the performance justify the price?

By Kevin Carter - Tuesday June 25 2013

Lens Review
Introduction | Canon EF 200-400mm f/4 IS USM Extender 1.4X image quality evaluation | Canon EF 200-400mm f/4L USM Extender 1.4x vs prime telephoto equivalents | Conclusion

Despite the desirability, with the price close to twice that of the rival Nikon equivalent the (as yet untested) $6,700 AF-S Nikkor 200-400mm f/4G ED VR II, this lens will remain largely inaccessible to most Canon users. However, for those that can afford it, or decide to rent it for occasional use, the Canon 200-400mm f/4L IS USM Extender 1.4X offers image quality that’s close to the best in class, along with the convenience and versatility that’s otherwise lacking with those fixed focal length equivalents.