EV com­pen­sa­tion

NPhoto - - Nikopedia -

The light me­ters in cam­eras work by mea­sur­ing the light re­flected by your sub­ject, and some re­flect more light than oth­ers. The cam­era, how­ever, has to as­sume ev­ery­thing has a medium grey tone. This means that you have to in­crease the ex­po­sure for in­trin­si­cally light-toned sub­jects and re­duce it for in­trin­si­cally dark ones to stop the cam­era from try­ing to ‘neu­tralise’ them.

You may need the ex­po­sure (EV) com­pen­sa­tion con­trol to pre­serve in­trin­si­cally light or dark sub­jects.

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