Diagonal angle of view 24deg lens construction elementsgroups 109 no of diaphragm blades 8 minimum aperture 32 closest focusing distance m 031 maximum magnification x 1 af actuator usm filter diameter mm 52 autofocus lens for macro photography up to life size 1x magnification medium telephoto lens with a macro feature for 1x magnification fluctuations in spherical aberrations caused by focusing are suppressed and high quality images are