Number of Iris Blades: 7 Blades Focus Type: Prime Standard Wedding Scene Scene Type: Scene Type: HUMAN Scene Type: Sports Scene Type: Insects Scene Type: Architecture Type: Fixed Focus Lens Certification: NONE Full Frame: Yes Focus Mode: Af, Mf Lens Type: Auto Focal Length: 50mm Maximum Magnification: 0.150 times Package: Yes Launch Date: 2015 UV filter lens size: 50mm Model Number: YN50mmF1. 4NE Lens Stabilization Type: None Minimum Aperture: F22 Maximum Aperture: f/1.4 Usage: Camera Weight: 501g-600g For Nikon: D5 Series. D4 series. Series d3. Series. D800 series. D750 series. Series. D300. Functions: Electromagnetic Aperture, Auto Exposure Shooting This lens is built-in with electromagnetic aperture, which supports M/Av/Tv/P/B shooting mode. Bright F1.4 and large aperture True bokeh background blur helps highlight subject easily. Even in a low-light environment, you can shoot with low sensitivity and relatively high shutter speed. USB Firmware Upgrade This lens is equipped with a USB port. To maintain the best performance and compatibility of this lens, you can download the latest firmware and update this lens independently. Live View (Lv) Focus This lens supports Live View (Lv) focus. When Lv mode is activated, this lens can focus from special angles or focus precisely from the magnified view on the display screen. Optical glass lens, multi-layer coating The whole series of this product adopts optical glass lens and multi-layer coating technology to effectively increase light transmittance and control backlight ghosting and glare. 7pcsof Diaphragm Sheets This lens has 7pcs of diaphragm sheets, which helps to take photos of defocused circular dots as well as the 14 star effect if you stop the aperture. Gold Plated Contact, Durable Metal Bracket This lens adopts gold plated contact and high precision chrome plated metal frame. It is portable, corrosion-resistant and very camera-compliant. Focus Modes: Auto Focus (AF) and Manual Focus (MF) This lens supports both auto focus and manual focus. The focus mode can be selected according to practical needs. Focus Distance Indicator This lens is equipped with a focus distance indicator, which helps you judge the distance and accomplish manual focus. Package Includes: 1 x YN50mm F1.4N E Lens 1 x Manual