The Canon 24-70mm f/2.8 EF L USM is a professional-grade standard zoom for Canon's EF autofocus mount, introduced as part of the L-series line aimed at full-frame SLR users. Covering wide-angle to short telephoto with a constant f/2.8 aperture and ring-type Ultrasonic Motor (USM) autofocus, it was designed as a workhorse lens for reportage, wedding, and general professional photography.

At recent UK auction, hammer prices for this 24-70mm f/2.8 EF L USM have sat in a tight £180–£200 band, with a median around £190 across the two recorded saleroom results. As of 2026, this reflects wholesale levels achieved before buyer's and seller's commission, and clean, fungus-free copies with smooth zoom and focus action tend to sit at the upper end of that price range, while examples with cosmetic wear typically sell for less.