YONGNUO YN40mm F2.8N 1:2.8 Standard Fixed Prime Lens AF MF Auto Manual Focus Light-weight for Nikon D500 D7100 D7000 D7500 D610 D800 D810 DSLR Camera

Specifications:Brand: YONGNUOModel: YN40mm F2.8NFocal Length: 40mmStructure: 4 Groups 6pcsMinimum Aperture: F/22Minimum Focal Distance: About 0.3 meterMaximum Amplification Factor: About 0.18XDriving System: DC MotorFilter Mount Diameter: 58mmMaximum Diameter & Length: 74 * 45mm / 2.9 * 1.8"Item Weight: 158.5g / 5.6ozPackage Size: 11 * 10.7 * 10.5cm / 4.3 * 4.2 * 4.1"Package Weight: 275g / 9.7oz Features:Standard prime lens for Nikon cameras, support Auto(AF) & Manual(MF) Focus.F2.8 large aperture help to blur out the background and highlight shooting subject.6pcs aperture blades enable you to make defocused spots or six stars effect.Equipped with focus distance indicator for you to judge distance and the depth of field.Support various shooting modes, the aperture and other info. are shown from EXIF.Accurately finishing aspheric lens effectively compensate various aberration.Multi-layer coating optical glass lens largely increase light transmittance and inhibit backlight and glare.Chrome plated and highly-precise metal mount make it perfectly match with the camera; And it is wearable, durable and corrosion-resistant.Gold-plate metal contacts effectively increase signal conductivity and corrosion resistance.Micro USB port support firmware upgrade to maintain maximum compatibility and performance.