Exposure Compensation with Advanced Metering SystemsĮxposure Compensation allows photographers to override exposure settings picked by camera’s light meter, in order to darken or brighten images before they are captured.Collectively, these form what is known as the exposure triangle.īut first, it helps to have a good understanding of exposure, which is the sum total of the three most important settings in all of photography: shutter speed, aperture, and ISO. Since camera meters work by evaluating light reflected off subjects and are standardized on middle gray (also known as 18% gray), any time a camera is pointed at something very dark, the meter will work the opposite way by brightening up the exposure, whereas a very bright subject will cause the meter to darken the exposure. This is done in order to get as close to the middle gray as possible, so that the resulting image is not too dark or too bright. While this works out quite well in most cases, one might experience overexposure or underexposure in more challenging lighting conditions, where the camera meter might be adjusting the exposure too aggressively. Let’s take a look at an example, where my camera’s metering system did a poor job at properly exposing the scene: Underexposed image based on camera’s meter (shot in Aperture Priority Mode)ĭSC-RX100M4 + 24-70mm F1.8-2.8 10.15mm, ISO 200, 1/13, f/11.0 This is where Exposure Compensation comes into play, with photographer manually taking control of the brightness of the image and overriding it using the exposure compensation feature of the camera. To address this problem, I used the Exposure Compensation feature of my camera and dialed +1 EV ( Exposure Value), which resulted in a much brighter image: Properly exposed image after dialing +1 EV using Exposure CompensationĭSC-RX100M4 + 24-70mm F1.8-2.8 10.15mm, ISO 200, 1/6, f/11.0 While shooting in Aperture Priority mode, the camera’s meter ended up underexposing the image, because the scene was rather challenging – the sky and the white sand in the foreground were bright, so the camera ended up darkening the whole image, which resulted in my subjects in the scene appearing way too dark.
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