In this article we will compare SLR, four models: Nikon D40, Nikon D90, Canon EOS Digital Rebel XSi and Canon EOS 40D.

Nikon D40

The Nikon D40 digital camera has a resolution of 6 megapixels and a 2.5-inch LCD screen that displays 230,000 pixels. E 'can take pictures at a maximum speed of 2.5 frames per second. The camera's shutter speed is 1 / 4000 sec. The duration of the flash sync is 1 / 500 seconds.

This camera also has support for files and you can also edit your photos directly from the menu. The ranges of ISO 200-1600. If you wish, you can also use a wireless remote with the camera.

Canon EOS Digital Rebel XSi

A 12.2-megapixel camera, the Digital Rebel XSi comes with a lens kit which is the image stabilization, sensor cleaning and live view is integrated software for dust suppression. The LCD has 230,000 pixels on a 3-inch LCD screen. A little 'faster than the D40, the camera can take 3.5 pictures per second. The duration of the flash sync is 1 / 200 sec.

The ISO ranges from 100 to 1600. This device also has a nine autofocus, lock the mirror, place a meter on automatic option for the depth of field. You also have the option of a wireless remote and flash, if you need it.

Nikon D90

The Nikon D90 is a camera with 12.3 megapixels and an impressive 3-inch LCD screen with 920,000 pixels .. The live display also has movie mode, but you can not auto focus once you start shooting.

You can record movies at 24 fps in the following formats: 320x216, 640x424 and 1280x720. He has 11 points autofocus and ISO between 100 and 6400.

For photos online, you can take 4.5 frames per second. Flash synchronization takes 1 / 200 seconds and the shutter speed of 1 / 4000 sec.

Canon EOS 40D

The Canon EOS 40D has less than two million pixel camera above (10.1 million pixels), but it compensates with great performance for the live action scenes. You can take 6.5 pictures per second with a shutter speed of 1 / 8000 sec.

The body of the device is made of magnesium and is sealed and a kit lens with image stabilization. It also comes with built in sensor cleaning and live view, you can also use the overlay grid. There are six types of programs you can choose.