Medium format lens series hasselblad hc lens mount hasselblad hb lens speed 45 focal length 300 mm suitable for sensor type medium format construction prime lens area of use animal photography focus manual focus af motor no internal af motor circular aperture closest focusing distance 250 cm lens type aspherical lens construction groupselements 79 minimum aperture 45 max aperture 45 coating multicoating mc weight 2 120 g included in de