Canon EF-S 17-55mm f/2.8 IS USM Lens

Optimized for APS-C-format Canon DSLRs, the EF-S 17-55mm f/2.8 IS USM lens offers a versatile 27.2-88mm equivalent focal length range with a consistent bright f/2.8 aperture. The design includes high-quality UD glass and aspherical elements to greatly diminish chromatic and spherical aberrations, enhancing image clarity and sharpness. A Super Spectra coating further enhances image quality by reducing lens flare and ghosting when photographing in well-lit conditions. An Image Stabilizer system mitigates camera shake effects by up to three stops, and the lens is equipped with a ring-type USM for swift, quiet autofocus along with the option for manual focus adjustment at any time.

I really enjoyed having this lens in my bag. 17-55mm was the perfect focal range for the run and gun shooting that I was doing so much of. Plus Image Stabilizer was a big help for hand-held work.