Component for: SLR Standard lens Black Lens structure (elements/groups): 6/4 Maximum aperture number: 22 Closest focusing distance: 0.3 m Auto focus A versatile, compact pancake lens. A fast maximum aperture enables low-light shooting and depth-of-field control. STM provides smooth quiet autofocus when shooting video with compatible cameras.- Portable pancake design.- Smooth, quiet STM focusing when shooting movies on compatible cameras.- Fast f/2.8 maximum aperture for low-light shooting.- Close focus to 0.3m.- Fast, quiet AF for pin-sharp results.- Great image quality right across the frame.A portable, versatile lens with STM for photographers travelling with their EOS.Extremely compact and portable designNever be without your EOS. The compact pancake EF 40mm f/2.8 STM is very thin, so youll always be able to take your DSLR with you.Smooth and quiet AF, STM focussing for moviesFast, accurate autofocusing ensures pin-sharp images even in tough conditions. Movie Servo AF with STM uses