Canon's original EF constant f/4 telephoto zoom — one of the first EF-mount lenses from 1987.
The Canon EF 70-210mm f/4 launched in 1987 as one of the original EF-mount lenses. The constant f/4 aperture was a distinguishing feature over the cheaper variable-aperture telephoto zooms of the era, providing consistent exposure throughout the range.
Optically decent for its era — sharp in the centre with the constant f/4 providing consistent performance. Early AF motor design — functional but slow by modern standards. No image stabilisation. Full-frame coverage. One of the first constant-aperture EF telephotos.
Canon EF mount with 58mm filter thread. Approximately 620g. Full-frame coverage. No weather sealing. Push-pull zoom mechanism on some versions. Minimum focus distance approximately 120cm. Early EF-mount design.
Very cheap used — essentially free. The 70-200mm f/4L IS USM is vastly superior in every respect. Only interesting as a piece of early EF-mount history. Check for smooth zoom and AF action. The constant f/4 was its main selling point — still a decent specification.