E-Mount Lens/Full-Frame Format Aperture Range: f/1.8 to f/22 One Aspherical Element Double-Gauss Optical Design DC Autofocus Motor Seven-Blade Circular Diaphragm It doesn’t sound like much, but this is an incredibly important lens. Offering incredible quality that defines Sony lenses for the A7-Series, this is no exception. The aperture range offers the user a perfect balance of colour and light during even the most difficult lighting conditions whilst maintain perfect AF control for street scenes, portraits and candid shots. Mobile and manageable for active shooting Although it is a full-frame lens, this model is compact and weighs only 186 grams. Whether on the camera or in your bag it won't be a burden, and it'll be ready whenever needed. The size and weight of this lens are an excellent match for compact α7 series bodies, providing outstanding overall portability and handling. Lifelike detail, texture, and gradation An updated double-gauss optical configuration with an aspherical element minimises spherical aberration and coma for sharp, high-quality rendering throughout every frame. The double-gauss design also suppresses field curvature and distortion. Dreamy large-aperture prime lens bokeh A large F1.8 maximum aperture and 7-blade circular aperture work together to create beautiful background bokeh that can make subjects stand out. Placing a sharply focused subject in front of a smoothly defocused background is an essential technique for producing deep, dimensional images. DC motor focus A new DC motor drive system has been carefully designed and implemented for optimum focus precision and speed as well as quiet operation. This system provides the same smooth for autofocus and manual focus control. Note: Focus motor sound may be recorded when shooting movies. Shoot at night or in dimly lit interiors The large F1.8 maximum aperture is an advantage when shooting night scenes or in dimly lit interiors. When used with an α series camera body that features in-body image stabilisation even greater low-light capability enables handheld capture of clear images in dark scenes without having to use excessively high ISO sensitivity.