Canon EF + FD 5,6/100-300mm | Single lens reflex camera (SLR)

The Canon EF and FD 100-300mm f/5.6 telephoto zoom lenses are notable for their applications in single-lens reflex (SLR) photography, offering long-range focal lengths for capturing distant subjects with clarity. The FD lens mount represents Canon’s classic manual-focus system used predominantly before the widespread adoption of autofocus in the late 20th century. These lenses deliver versatility for photographers seeking wildlife, sports, or event coverage with reach extending to 300mm. The fixed aperture of f/5.6 affects light intake and depth of field, typical for lenses offering extended zoom ranges. The EF mount version is compatible with Canon’s later autofocus SLRs, whereas the FD lens serves users of vintage film cameras. Telephoto zoom lenses in this focal length range are prized for their ability to isolate subjects and produce a compressed perspective, valuable for artistic and documentary photographic intentions. The design of such lenses typically balances optical performance with manageable size and weight for field use.