17mm - Street Photography & Documentary PhotographyWide Angle and Large ApertureMixing a comfortable wide-angle design with an ultra-fast maximum aperture, the 17mm f/1.4 lens is designed for use with APS-C-format mirrorless cameras and provides a 25mm equivalent focal length. The optical structure of this lens is 9 elements in 8 groups and the angle of view is 81 Degree . Characterized by its bright f/1.4 maximum aperture, this lens is adept at working in low-light conditions and also affords increased control over depth of field for selective focus control. It's a fast and portable lens well-suited to landscape, nature, and street photography.Documentary PhotographyPeople and objects can achieve a good balance in the picture, shooting with 17mm lens. So it is well-suited to everyday shooting with subjects including street, landscape and reportage, which are memorable.Wide Angle Lens But Not Hard to HandleWith the focus length of 17mm, this is a wide angle lens with the viewing angle about 81 Degree . It is not as exaggerated and difficult to control as an ultra-wide angle lens, allowing you to record beauty more easily.Portrait PhotographyCompared to medium telephoto lenses,17mm behave better in environmental information recording, make the scenery and characters integrate better in the shooting, it's a good choice for trip shoot.Large Aperture Increases the Possibility of Creation