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|Type||Digital single-lens reflex|
|Lens||Interchangeable Nikon F-mount, full function with AF-S and AF-I lenses only. All functions except autofocus supported on all CPU lenses.|
|Sensor||Nikon DX format 23.7 mm × 15.6 mm (0.93 in × 0.61 in) CCD|
|Maximum resolution||3,008 × 2,000 (6.1 effective megapixels)|
|Film speed||ISO 200-1600, ISO 3200 in high mode|
|Storage media||Secure Digital, SDHC up to 32GB|
|Focus modes||autofocus: single (AF-S); continuous (AF-C); auto selection (AF-A); Manual|
|Focus areas||3 sensors, Multi-CAM530|
|Exposure modes||Manual, Aperture Priority, Shutter Priority, Program and preset settings: Auto, Portrait, Landscape, Child, Sports, Macro, and Night Portrait|
|Exposure metering||420 segment color meter|
|Metering modes||3D Color Matrix, Center-weighted and Spot|
|Flash||i-TTL Built-in or hotshoe (e.g. for the matching SB-400 Speedlight)|
|Shutter speed range||1/4000 to 30 seconds, bulb; 1/500 Flash X-Sync|
|Continuous shooting||2.5 frame/s, 100 JPEG frames buffer|
|Viewfinder||optical, through the lens, pentamirror type, 0.8× magnification, 95% coverage|
|LCD screen||2.5", TFT, 230,000 pixel, 170° angle of view|
|Battery||1,000 mAh lithium-ion EN-EL9|
|Dimensions||126 mm × 94 mm × 64 mm (5.0 in × 3.7 in × 2.5 in)|
|Weight||475 g (16.8 oz) without battery |
524.1 g (18.49 oz) with battery 
729 g with battery and AF-S DX Zoom-Nikkor 18-55mm f/3.5-5.6G ED II kit lens 
The Nikon D40 is Nikon F-mount entry-level digital SLR, announced November 16, 2006 and made until March 2009, when it was succeeded by the Nikon D3000. Compared to its predecessor, the D50, the D40 had several features removed, a few added, and a lower price: US$499.95 ESP as of November 2009 with the 18–55 mm G-II kit lens, positioning it as an entry-level model compared to the D80. The D40x (released March 6, 2007) has a 10-megapixel maximum resolution, up from 6 megapixels of the D40 and D50.
Despite being superseded by newer offerings, the Nikon D40 retained some significant advantages.[opinion]
The Nikon D40 was less expensive than the Canon EOS 400D (also known as the Rebel XTi in the United States), the Pentax K110D, and the Olympus E-400, and is competitively priced against high-end bridge cameras (the D40 and D40x do not have live preview, unlike bridge digitals). It was launched accompanied by a new small kit lens, the AF-S DX Zoom-Nikkor 18–55 mm f/3.5-5.6G ED II. The D40's small size and low price made it attractive to point-and-shoot photographers moving up to their first SLR, however it does contain features and improvements that would appeal to enthusiasts as well.
Despite having a comparatively lower resolution for a DSLR introduced in 2006, the D40 held some benefits over its newer competition such as the Nikon D40x, D60, and Canon Rebels. Because only 6 megapixels are fit onto the standard Nikon DX format sensor, the sensitivity of each pixel is higher. The default sensitivity on the D40 is ISO 200, and the D40 adds an ISO 3200 speed (listed as "Hi1" in the camera menu) compared to the Nikon D50's maximum ISO 1600. The D40 has a very fast 1/500 flash sync, useful for daytime fill-flash. This compares to the typical 1/200 sync speed of other entry level and even some semi-pro DSLR cameras such as the Canon EOS 40D with its 1/250 sync speed.
Due to its hybrid electronic/mechanical shutter, it is in fact possible to flash sync the D40 beyond its published 1/500 maximum sync speed up to its maximum shutter speed of 1/4000. The D40x does not share this ability.
The Nikon D40 was tested by various independent reviewers, receiving generally very favorable comments for its ergonomics and image quality. It received some criticism for some of the compromises its designers made to keep the D40's price and size competitive. For example, Digital Photography Review, among many others, noted the loss of the screw-drive autofocus motor and the top LCD panel.
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 (as noted above, each pixel in the 10.2-megapixel sensor receives less light than the pixels in the D40 sensor). It has a flash sync speed of 1/200 seconds compared to the D40's 1/500 seconds. It is otherwise identical.
The launch was accompanied by the introduction of a new consumer-level telephoto zoom with vibration reduction. Nikon ceased production of the D40X in December 2007, shortly before they introduced its successor, the Nikon D60.
|Wikimedia Commons has media related to |
- "Nikon D40". Products Line Up. Nikon Corporation. Archived from the original on 2008-03-06.
- "Nikon D40 Specifications". Ken Rockwell. Retrieved 2012-12-18.
- "AF-S DX Zoom-Nikkor 18-55mm f/3.5-5.6G ED II". Nikon Americas.
- "Nikon D40" (Press release). Nikon Corporation. 2006-11-16. Archived from the original on 2007-03-29.
- "D40 from Nikon". Nikon USA. Archived from the original on 2010-02-17.
- Rockwell, Ken. "Nikon Lens Compatibility". Kenrockwell.com. Retrieved 2009-10-25.
- "A compact 3x zoom lens featuring Silent Wave Motor Autofocus for Nikon digital SLRs" (Press release). Nikon Corporation. 2006-11-16. Archived from the original on 2007-06-23.
- "Nikon D40 Camera - Full Review". Imaging-resource.com. 2006-12-16. Retrieved 2012-09-07.
- David Chin (2006-12-18). "Nikon D40 vs Nikon D50". Dpnotes.com. Retrieved 2012-09-07.
- "Digitalcameratracker.com: Nikon D40 Review". Archived from the original on 2010-12-31.
- Askey, Phil (December 2006). "Nikon D40 Review". Digital Photography Review. Retrieved 2010-01-02.
- "Nikon D40x" (Press release). Nikon Corporation. 2007-03-06. Archived from the original on 2007-12-13.