Learning to #expose correctly using the #grey #card is something simple to achieve if you follow the simple steps that we detail in this video presented by Pablo Jeffs.
If you learn how to use the 18 percent gray card, you will get readings with a # reflected light photometer as accurate as can be obtained with an # incident light exposure meter.
This accessory is a piece of cardboard or very thick paper that reflects 18% of all light it receives (if we have a scale graduated in 10 zones from the brightest lights to the darkest shade, this should have the gray tone of the middle ). Camera manufacturers by convention scale their exposure meters or photometers to measure right in the middle of the scale between light and shadow.
Gray card reading is usually done as follows:
It is oriented in the same position as what we are going to #photograph looking for it to receive even lighting and without shadows and then the #camera is oriented blurring and filling the entire frame, finally the reading is taken with the camera's exposure meter and this reading It is the one that best suits the scene we want to photograph.
The gray card or card is also used to establish the white balance, but that is something that we will tell you in another video.
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