The Canon EF 75-300mm f/4.5-5.6 III USM is an autofocus telephoto zoom for Canon's EF mount, fitting full-frame and APS-C EOS bodies. Positioned as an entry-level telephoto, it was designed for casual wildlife, sports and travel use, with the USM designation indicating an ultrasonic autofocus motor.

UK auction hammer prices for this lens are modest, reflecting its consumer-grade status and high production volumes; the only verified sale in our records hammered at £60 in March 2025, which sets the benchmark for what a clean copy is worth at saleroom level today. With just one data point, the typical price range cannot be reliably bracketed, but values consistent with that result are what the lens currently sells for in the auction market in 2026. Cosmetically tidy examples with smooth zoom and focus action tend to fetch the upper end, while hazy or fungused copies sell for considerably less.