What is Bracketing and How Setting In DSLR Camera

Bracketing Auto Exposure Bracketing or official is shooting techniques to anticipate quite tricky lighting situations. Technically, the camera will take an appropriate exposure according to him and pick up some extra exposure over-exposed (brighter) and under-exposed (darker). By taking multiple exposures at the same time, then chances are we have the right picture of her greater exposure.
If we’re shooting important events (eg wedding) in tricky lighting conditions, using bracketing to reduce our risk of losing important photos with the right exposure. So also when it comes to shooting HDR, use bracketing to produce images with the same object but have different exposures, so that later can be combined to produce a HDR photo.

With DSLR cameras, we can determine how much exposure variation: ranging from a 1/3 stop to per-second stop, and how many total images in all bracketing (of 3 photos up to 6 photos), depending on each camera. How does the setting? labors is every camera manufacturer has its own way, so here we will take the two major brands; canon and nikon, other brand owners to please check their manual.
Setting Bracketing in Nikon DSLR Camera

If you are using Nikon D3/D4/D3S/D7000 and similar, steps are:
Find the bracketing (BKT) in addition to the above left of the lens (see photo)
Already see the button? Ok, now, pressing BKT button, rotate the command dial (rear wheels turn in the upper right of the camera) to the top of the screen shows 3 F (mean 3 exposures – or 3 photos once bracketing)

If you are using Single Frame shooting mode, you have to push the shutter button 3 times for each exposure. If you are in continuous mode, the way is press and hold the shutter button the camera will take 3 exposure at a time.
For other Nikon (D300/D300S/D700), look for the Fn key at the bottom right of the lens, turn the dial back to play command to specify the number of frames and the front command dial to specify the range of exposure.
Setting Bracketing for Canon Cameras

Here I take the example for the Canon EOS 60D/50D/7D:
Go to the menu, then Shooting 2, see the first entry: Expo. Comp. / AEB.
Select the menu.
Rotate the Main Dial (steering wheel on the right side) to select a range bracketing.
Press the SET