The Canon EF 75-300mm f/4-5.6 IS USM is an autofocus telephoto zoom for Canon's EF mount SLR and DSLR system, pairing a variable f/4-5.6 aperture with built-in Image Stabilizer and an Ultrasonic Motor. It was aimed at enthusiasts wanting an affordable long-reach zoom for sports, wildlife and general telephoto work.

At recent UK auction the lens is firmly in budget territory, with hammer prices between £45 and £80 and a median around £60 across the sales recorded here. As of 2026 this EF IS USM version still commands a small premium over the plain non-IS 75-300mm at saleroom level, but condition and the presence of caps, hood and a working IS unit are what really move the price — remember these are wholesale hammer figures, so retail asking prices from dealers sit higher.