The D50 is an entry-level digital single-lens reflex camera from Nikon. It has a 23.7 mm by 15.6 mm DX format image sensor with 6.1 million effective pixels. It also has a two-inch (50 mm) polysilicon TFT LCD with 130,000 pixels. The camera uses a through-the-lens full-aperture exposure metering system. It can simultaneously record NEF and JPEG data to a Secure Digital storage device. Like its newer, higher-end sibling (the D80), the D50 uses Secure Digital instead of CompactFlash cards found on previous Nikon digital SLRs. The camera is powered by a rechargeable lithium-ion battery which is claimed to be able to take up to 2,000 shots on a single charge. The camera is compatible with PictBridge printers and can shoot 2.5 frames per second in continuous mode. The camera's dimensions are 133 mm in width, 102 mm in height, and 76 mm in depth. It weighs 620 g with the battery (about 22 oz)

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The D50 was announced on April 20, 2005 and went on sale in June 2005. When introduced, the camera carried a suggested retail price of US$799 for the body only or $899 with a new 18-55 mm F3.5-5.6 G AF-S DX lens. Another variant of the D50 kit containing both the 18-55 mm and a 55-200 mm F4-5.6 G AF-S DX lens is available. Competitors of the D50 include the Canon EOS 350D, the Pentax *ist DS, the Konica Minolta Dynax 5D, and the Olympus E-300. D50 body in silver. D50 body in silver. The website Digital Photography Review, whose staff evaluate cameras, rates the D50 highly and notes its improved noise performance over the D70s it is largely derived from, although it does sacrifice some hobbyist features to achieve its lower price as compared to the D70s.[1] In depth testing by the Images Resources website and the October 2005 "Hoshi Nabi" (Star Navigator) Magazine [2], indicate that the D50 achieves its low noise through exceptionally good performance at the sensor level. Testing by Roger clark [3] confirms that the D50 has higher gain and lower noise than the D70. Tests of the D50 at all ISO levels indicate that it does offer low noise without loss of contrast or detail [4]. By the end of 2006, the D50 has been replaced by the D40. The camera was sold as either body only, "single kit" with the Nikkor 18−55 mm f/3.5-5.6G lens, or "double kit" with the Nikkor 18-55 mm and 55-200 mm f/4-5.6G lenses. Harry Potter