Nikon D40

The Nikon D40 is a 6.1-megapixel DX format DSLR Nikon F-mount camera announced by Nikon on November 16, 2006. It replaces the D50 as Nikon's entry level DSLR. It features a 2.5-inch 230,000-dot resolution LCD monitor, CCD sensor with ISO 200-1600 (3200 Hi-1) and 3D Color Matrix Metering.

The D40 was the first Nikon DSLR without an in-body focus motor. Autofocus requires the use of a lens with an integrated autofocus-motor.

In March 2007, Nikon released a sister model, the D40x, which included a 10.2-megapixel sensor and several other changes over the original D40.

Features

 * 6.1-megapixel Nikon DX format CCD Sensor
 * 23.7 mm x 15.6 mm sensor size
 * SD and SDHC memory card file storage
 * ISO 200-1600. Hi-1 (ISO 3200)
 * 2.5-inch color LCD monitor with 3 colorful display options
 * File formats: JPEG, NEF (Nikon's RAW, 12-bit compressed
 * Nikon F-mount lenses
 * 3-area auto focus
 * Image assist
 * Fires continuously at a speed of up to 2.5 frames per second
 * EN-EL9 Lithium-ion battery
 * Built-in speedlight with i-TTL automatic flash control
 * Flash sync speed up to 1/500 sec
 * In-camera retouching

Reception
Reviews of the Nikon D40 have been generally favorable due to its ergonomics and image quality. It received some criticism for some design compromises Nikon undertook to keep the D40's price and size competitive.

Nikon D40x
On March 6, 2007, Nikon introduced the D40X, a sister camera to the D40. While identical in external design to the D40, it has a 10.2-megapixel CCD sensor, continuous shooting up to 3 frames per second, and a base sensitivity of ISO 100. It has a flash sync speed of 1/200 of a second.

A new consumer-level telephoto zoom with vibration reduction debuted alongside the launch. Nikon ceased production of the D40X in December 2007, shortly before they introduced its successor, the Nikon D60.