« on: January 23, 2013, 05:53:29 PM »
As a rule of thumb, the wider the zoom range the worsae the image quality. The 18-200 has the worst MTF curves of any lens Canon makes and extending the range will probably make it worse. It might come out, but I would not buy one. A pair of cheap lenses like the 18-55 and 70-300 would probably outperform an even wider rage superzoomThe whole idea of a "workhorse" lens is one that covers a very large focal length, both wide and tele, without me having to change lenses.
For my day-to-day photography, I need a focal length from 18mm to >200mm.