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 obtained at all focusing distances with eight aperture blades good background blur is obtained even when the aperture is decreased by one or two stops a focusing limiter which limits the magnification to 025x is built in diagonal angle of view 24de