|View single post by jk|
|Posted: Sat Mar 27th, 2021 00:04||
|The why is down to experience using any technique.
Remember there isnt a correct exposure only an exposure!
An image that is rendered as a high key image is exposed differently to one that is rendered as a low key image. In the high key image you will be shifting (increasing) your exposure of mid-grey towards white and the reverse if you are exposing to give a low key rendering.
The light falling on the subject as measured by incident light metering will allow you render whatever is there as mid-grey, white or black at whatever is its true tone.
With reflected light metering a dark subject will fool the meter and give you more exposure and conversely a light object will give you a suggested reading that is underexposing the subject.
Try reading a tutorial on the Zone System.
Sometimes it is easier to experiment and see than try to explain this stuff.
Still learning after all these years!