Review on Canon EF-S 17-55mm f/2.8 IS USM Lens - Compatible with Canon DSLR Cameras (Lens Only) by Keebs Alter

I have both the widths of the professional L series and this lens. So I compared in practice many times. On crop it gives better results than electric. The combination of constant aperture and stabilizer gives excellent results. The best lens for cropped cameras. With its pros. Excellent sharpness, constant aperture (and 2.8 is quite a working range), the presence of a stabilizer and an ultrasonic motor. Got cons: high price despite the fact that not L. The design of the vacuum cleaner, although I have no problems with dust for a year of use. Just store in a clean case. Not airtight, fogging inside in the rain.