Humanistic Perspective: In APS-C frame cameras, 35mm is very suitable for capturing humanistic scenes, including food, portraits, still life, and cute pets. Premium Design: Metal Material & Utra-Small Structure Design]Brightin Star 35mm F1.7 is made of metal and glass, with exquisite workmanship and compact design, allowing you to put the lens in your pocket. F1.7 Large Aperture: The F1.7 large aperture provides a large amount of light, which can meet the needs of night photography and increase the atmosphere of the photo. Clear Image Quality: The aperture can fully open, the center image quality remains clear and sharp at an aperture of F1.7. Attention Please: This lens is a pure manual lens. When using a manual lens for the first time, you need to set the camera to manual mode and turn on the lens release function. Item Weight 12 ounces Manufacturer BRIGHTIN STAR Product Dimensions 0.39 x 0.39 x 0.39 inches