Several companies have released affordable super-telephoto zoom lenses recently (like the Nikon 200-500mm, Sigma 150-600mm & Tamron 150-600mm) and it looks like Canon may be adding to the mix. Canon Rumors reports that it has info from a reliable source of a Canon EF 200-600mm f/4.5-5.6 IS lens in development.
The lens may not be an “L” lens and, thus, wouldn’t necessarily compete with the Canon EF 100-400mm f/4.5-5.6L IS II lens. Accordingly, the lens is also expected to be offered at a lower price point than the 100-400mm.
No additional rumors on pricing or release dates; however, the 200-600mm lens is expected sometime this year.