, Affordable large-aperture, high-quality prime-lens, ideal for portraits , ED (Extra-low Dispersion) glass reduces chromatic aberration , Minimum focus distance: 80 cm. , 9 blades circular aperture unit, dust and moisture resistant design;Minimum focus distance 0.8 m (2.63 ft); Maximum Magnification ratio (x) 0.13; Filter Diameter (mm) 67 , Double linear motor system for fast, precise and quiet AF with a customizable focus hold button , Sony SEL85F18 FE 85mm F1.8 Portrait Lens - Black Hood (model): ALC-SH150 Lens front cap: ALC-F67S Lens rear cap: ALC-R1EM