Small Lens Big CharacterVersatile Focal Length with Fast ApertureA Go-to Full Frame Focal LengthIdeal for street, travel, documentary and everyday photography. It balances environmental context with subject isolation - a truly Versatile Focal Length trusted by photographers.F2 Large ApertureCreates Soft Background BlurLets in more light for faster shutter speeds and better low-light performance.All-metal Construction - Crafted from 5052 Aviation AluminumWeighs just 167-176g, with a refined metal finish and premium feel. The compact design supports flexible shooting angles and maintains excellent balance even on Aps-c bodies.Clicked Aperture RingThe clicked aperture ring delivers clear tactile feedback with each stop, allowing fast, confident aperture adjustments.0.4m Minimum Focusing DistanceGet closer to capture facial expressions and fine details.Excellent image QualityCombining Ed and Aspherical (Asph.) elements, this small lens effectively controls chromatic aberration while maintaining clarity.Fast and Accurate AutofocusFeatures an Stm stepping motor for quick, smooth and precise focusing.Supports Face DetectionFirmware Update InterfaceThe Type-c interface for firmware update of Af 40mm F2 is designed on the rear lens cap, which improves the aesthetics of the lens.