The physical length of this optically-true telephoto lens is considerably shorter than its focal length. 250 mm is an excellent focal length for outdoor work, and the compactness of this model means that it can be used without a tripod. Even at full aperture the image quality of this lens is excellent and cannot be improved any further by stopping down. Before my investment on the 180mm Planar, this is the bridging lens with the 120mm Makro Planar for closer access. Somehow, the compromised lens speed restricted greater flexibilities and those who works in studio complaint on effective working distance.
Meer informatie:
https://www.cameraland.nl/tweedehands-hasselblad-sonnar-t-250-5-6-cm2573