Canon is rumored to be developing a replacement to the less than stellar EF-S 18-200mm f/3.5-5.6 IS lens. The new lens will have the same STM motor as the EF 40mm f/2.8 STM and EF 18-135mm f/3.5-5.6 STM lenses. Anytime a lens has a ratio of more than 1:10 zoom, there will be a compromise between versatility and peak performance. The EF 28-300mm L IS lens is a prime example. One either loves it for its great focal lengths or loathes it for its monstrous weight and less than ideal IQ. The new EF-S 18-300mm f/3.5-5.6 IS STM lens may be available some time in the middle of 2013.