From the course: HDR Photography: Shooting and Processing
Join today to access over 22,600 courses taught by industry experts or purchase this course individually.
Image sensor and shadows
From the course: HDR Photography: Shooting and Processing
Image sensor and shadows
Here is a weird one. If the amount of light in this room is doubled, I do not actually perceive a doubling of light. I perceive less than that. All your senses work this way actually. If someone hands me a bowling ball and then they hand me a second bowling ball, I'll probably think, "I really wish this personal will stop handling me bowling balls." Then I might actually realize that I'm not experiencing a doubling in weight. Our senses are nonlinear. That is my sense of brightness does not follow perfect doublings. My sense of brightness increases on a curve. Now don't worry too much about understanding that. The practical upshot of it is that we end up with a very good ability to see detail in bright highlights and dark shadows. The image sensor in your camera though captures light in a linear fashion. If you double the amount of light, the image sensor records a doubling of brightness. This has a curious effect on image capture and it goes like this. Let's say my camera can capture…
Practice while you learn with exercise files
Download the files the instructor uses to teach the course. Follow along and learn by watching, listening and practicing.
Download courses and learn on the go
Watch courses on your mobile device without an internet connection. Download courses using your iOS or Android LinkedIn Learning app.