This D-type Nikkor lens, like all other Nikkor D and G type lenses, relays subject-to-camera distance information to AF Nikon camera bodies. This then makes possible advances like 3D Matrix Metering and 3D Multi-Sensor Balanced Fill-Flash.The 50mm f1.8 Lens delivers superior optical performance thanks to the incorporation of high-grade Nikon Super Integrated Coating. Features: D-type lens design provides distance information as part of flash and ambient light exposure processes Classic normal lens provides speed and compact design Multi-layer coating minimizes flare and ghosting Exceptionally lightweight and compact. Ideal for travel photography Stops down to f/22 for excellent depth-of-field control Specifications: Focal Length: 50mm Maximum Aperture: f/1.8 Lens Construction: 6 Elements in 5 groups Minimum Focus Distance: Approx. 1.5 feet Maximum Reproduction Ratio: 0.15 Number of Diaphragm Blades: 7 blades Picture Angle: 46 degrees (35mm format), 31 degrees 30 minutes (Nikon DX format) Aperture: f/1.8-22 Filter Attachment Size: 52mm Hood: HR-2 Rubber hood Dimensions: 2.5 x 1.5 in. Weight: Approx. 5.5 ounces |