High Dynamic Range

[gregc]

Hi

What is meant by High Dynamic Range in the context of bracketing?

Greg

 

[acparsons59 6]

How To: HDR Photography - Digital Photography School

 

[sscarmack]

Let me google that for you

HDR Explained | FreePhotoResources - Photography Blog

 

[darkchild]

There's tons of info on HDR on the web, a simple google search will give you hours and hours of info on it. There are also a lot of books on it. Amazon.com: hdr

 

[KmH]

Many scenes have a higher dynamic range than the image sensor in the camera can record as a single exposure.

By bracketing a series of photos of a high dynamic range scene so that the dark parts, the bright parts, and the middle parts are all recorded with close to accurate exposures we can combine the series of images into a final image the camera could never make as a single exposure.

How many photos will be needed in the bracketed series depends on the dynamic range of the scene, and on the dynamic range the image sensor in the camera is capable of capturing.

 

[Civchic]

Many scenes have a higher dynamic range than the image sensor in the camera can record as a single exposure.

By bracketing a series of photos of a high dynamic range scene so that the dark parts, the bright parts, and the middle parts are all recorded with close to accurate exposures we can combine the series of images into a final image the camera could never make as a single exposure.

How many photos will be needed in the bracketed series depends on the dynamic range of the scene, and on the dynamic range the image sensor in the camera is capable of capturing.

The best example of this that someone described to me when I was wondering about HDR applications (and one that can be quite subtle, as opposed to some of the highly enhanced almost cartoony stuff that some people are into with HDR) is shooting someone looking out a window from inside a dark room. You either blow out the exterior and expose for the person, losing everything but a glow from the outside light, or you expose for the scene outside the window and get silhouette of the person. HDR enables you to layer those two images together and see both the person and what they are looking at.

 

[KmH]

Two images layered together isn't an HDR, but that sure is the idea.