HDR: Is a Three Step Process

The biggest mistake HDR shooters make is trying to rush 
the process. Some think its as simple as shooting the photos and running them through a merging application. Others try to save even more time and use in-camera HDR solutions. 
While both of these options can make a better photo 
than just a traditional exposure, they don’t really embrace the full capabilities of HDR imaging. For that, you need to truly 
take a three-step process.

ShootUsing the bracketing option on your camera (or manually adjusting exposure), you’ll successfully capture two or more shots. The most common number of exposures taken is three, in which a base exposure is used and then an under- and overexposed image are acquired to preserve the highlights and shadows. Typically these multiple exposures are taken from a tripod to ensure that there is no movement between each exposure.  However some users do shoot handheld and rely upon the software to help them align the images.

The base image plus an overexposed and underexposed frame are used to create the HDR image.You can use any combination of exposures to properly show the scene. The wider the dynamic range of the scene, the higher the number of exposures you’ll need. If the light source is directly in the frame, you may need as many as seven exposures. Alternately, some photographers choose to just increase the amount of exposure compensation between the shots…..Click the link below for more of this article:

Source: HDR: Is a Three Step Process

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