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-   -   What is HDR? (https://forums.steves-digicams.com/hdr-98/what-hdr-163980/)

Bynx Dec 31, 2009 12:43 PM

What is HDR?
 
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HDR means High Dynamic Range. It is a technique of shooting a scene having very bright and very dark elements so that there is detailed image in both ranges. Generally 3 shots are required but more can be done depending on the detail you want. One underexposed, one normal exposure and one overexposed. All the camera settings remain untouched for each shot except for the shutter speed. Using software such as Photomatix Pro, Photoshop CS2 and others you are able to combine the different exposures together producing an image which has details in all areas of the photo. A tripod is recommended but careful hand held shots are possible when using Photomatix Pro. In the example below the 3 photos on the left were shot at f13.6, ISO 64 and the top one had a shutter speed of .8 sec. The middle was 1/10 sec. The third was 1/40 sec.


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