Nikon D40 has a 6.0MP APS-C (23.7 x 15.5 mm ) sized CCD sensor.

You can shoot at a maximum resolution of 3008 x 2000 pixels with aspect ratios of and 3:2. D40 has a native ISO range of 200 – 1600 which can be boosted to 3200 and it can save files in RAW format which gives you a wider room for post-processing.

Nikon D40 has an LCD screen with a resolution of. At only 2.50″, the screen is on the smaller side and 230kdot resolution is lower than most of the recent models in this class.D40 has a built-in, making it easier to shoot in direct sunlight and in other situations where it might be difficult to view the LCD monitor.

The viewfinder has a coverage of 95% and a magnification ratio of 0.53x. 95% coverage means that what you see in your viewfinder while shooting will slightly be different from the actual image.

Nikon D40 has a USB 2.0 (480 Mbit/sec) port to connect your camera to other devices.D40 has a built-in flash, and it also has a flash shoe to mount your external flashes too.
the Nikon D40 has no video recording feature