Editing Bracketing (section)

==={{anchor|ISO}}ISO bracketing===
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ISO bracketing is a form of simulated exposure bracketing in which aperture and shutter speed (thus depth of field and motion blur) remain constant. The brightness levels in this case are only altered by increasing or decreasing [[gain (electronics)|gain]], or amplification of the digital signal prior to the conversion to an image file such as a [[JPEG]] or [[Tag Image File Format]] (TIFF). This type of bracketing must be performed with the camera in Manual mode but is easy to implement simply by shooting a single properly exposed image in RAW and applying exposure compensation in post processing. This is analogous to "pushing" or "pulling" in film processing, and as in film processing, will affect the amount of "grain" or [[image noise]].

It is also possible to apply a type of ISO bracketing which brackets the signal gain while maintaining a constant level of brightness in the finished photograph. In this case the exposure compensation (EV value) setting remains constant while bracketing the ISO value in Av, TV, or P mode, which will have a corresponding effect on the shutter speed, aperture value, or both. This form of ISO bracketing could potentially affect not only image noise, but also depth of field and motion blur.

In-camera [[automatic ISO bracketing]] is uncommon and therefore must usually be performed manually.