The Tamron SP 90mm f/2.5 is a high-quality tele-macro lens from Tamron's renowned SP series. It combines a fast maximum aperture of f/2.5 with a 90mm focal length, making it suitable for macro photography, close-up details and portraits.
The manual-focus SP 90mm models in this range belong to Tamron's Adaptall-2 system. With the appropriate adapter, they can be used on different camera mounts. The earlier 52B version provides a maximum magnification ratio of 1:2 without additional accessories. The exact version and any included adapter should be confirmed from the model markings.