Canon 100-300mm f/4.5-5.6

{"overview":"The Canon EF 100-300mm f\/4.5-5.6 USM is a consumer-grade telephoto zoom for Canon's EF autofocus mount, designed for full-frame and APS-C SLRs. These figures are saleroom hammer results and reflect wholesale rather than retail levels, so clean copies offered through dealers can be priced higher. As a budget EF zoom, it sells for relatively modest sums and its value tracks closely with cosmetic and optical condition.","buying_guide":"Inspect the front and rear elements for fungus, haze and coating scratches, and check internal elements for any signs of separation or balsam staining. Work the zoom and focus rings through their full travel to confirm smooth operation without stiffness or grinding, and listen for the USM autofocus engaging cleanly.

Generated summary, 25 Apr 2026 — not checked by hand; prices on this page come from the sales, not from this text.