Main Features of the Nikon D40 Digital SLR Camera –

light Weight
2.5-inch LCD monitor
Large, bright viewfinder with 0.8x magnification
Long-life Rechargeable Li-ion Battery EN-EL9
optional AC Adapter EH-5
Handy assist images
optional Wireless Remote Control

Supplied Accessories With Nikon Coolpix D40 Digital SLR Camera –

Rechargeable Li-ion Battery EN-EL9
Quick Charger MH-23
USB Cable
PictureProject
Rubber Eyecup
Camera Strap
Body Cap 
Eyepiece Cap
Accessory Shoe Cap 
Picture Project CD-ROM

Technical Specifications for Nikon Coolpix D40 Digital SLR Camera –

Type of camera – Single-lens reflex digital camera
Effective pixels – 6.1 million
Image Sensor – RGB CCD, 23.7 x 15.6 mm; total pixels: 6.24 million
ISO Sensitivity – 200 to 1,600 in steps of 1 EV with additional setting one step over 1600
Storage Media – SD memory card, SDHC compliant
Storage System – Compressed NEF (RAW): 12-bit compression, JPEG: JPEG baseline compliant
File System – Exif 2.21, Compliant DCF 2.0 and DPOF
White Balance – Auto (TTL white-balance with 420-pixel RGB sensor) 
Interface – USB 2.0 (High-speed): Mass Storage and PTP selectable
Picture Angle – Equivalent in 35mm [135] format is approx. 1.5 times
Viewfinder – Fixed-eyelevel penta-Dach mirror type; built-in diopter adjustment (-1.7 to +0.5m-1)
Eyepoint – 18mm (-1.0m-1)
Focusing Screen – Type B BriteView Clear Matte screen Mark V with superimposed focus brackets
Viewfinder Magnification – Approx. 0.8x with 50mm lens at infinity; -1.0m-1
Focus Areas – Can be selected from 3 focus areas
Exposure Compensation – ±5 EV in increments of 1/3 EV
Sync Contact – X-contact only; flash synchronization at up to 1/500 s.
Tripod Socket – 1/4 in. (ISO 1222)
Body Color – Black (Silver version is also available depending on country or area.)
Dimensions (W x H x D) – Approx. 126 x 94 x 64mm (5.0 x 3.7 x 2.5 in.)
Weight – Approx. 475g (1lb. 1oz.) without battery, memory card or body cap