From the course: Canon 5D Mark III Essential Training
Unlock the full course today
Join today to access over 22,400 courses taught by industry experts or purchase this course individually.
Using the depth of field preview button - 5D Tutorial
From the course: Canon 5D Mark III Essential Training
Using the depth of field preview button
Just like your eye, your camera's lens has an aperture in it that can open and close to let in more or less light. When the aperture is more open, you get shallower depth of field; when it's more closed, you get deeper depth of field. This is all explained in detail in Foundations of Photography: Exposure. Obviously, as the aperture closes, less light gets into the camera. So by default, the camera always leaves its aperture wide open, so that when you look through the viewfinder, you see a nice bright image. Even if you have dialed in a very small aperture for shooting, when you look through the viewfinder, you're still looking through a wide open aperture, to ensure that you can see your scene clearly. When you finally press the shutter button, the camera closes it's iris down to your chosen aperture setting. Because the aperture in your camera is always wide open when you're looking through it, you are not necessarily seeing the true depth of field that you will see in your final…
Contents
-
-
-
-
-
-
-
-
-
Exploring metering modes3m 26s
-
Using exposure lock1m 22s
-
Working with focus points and metering3m 47s
-
Exploring Aperture Priority mode3m
-
Using the depth of field preview button2m 40s
-
Using Shutter Priority mode3m 26s
-
Using Manual mode3m 27s
-
Using auto exposure bracketing6m 3s
-
Exploring Bulb mode2m 34s
-
Working with the Auto Lighting Optimizer1m 40s
-
Correcting lens aberration2m 46s
-
Exploring Highlight Tone Priority2m 25s
-
Understanding high-dynamic range (HDR)7m 5s
-
Creating multiple exposures6m 25s
-
Using the mirror lockup feature2m 20s
-
-
-
-
-
-
-
-
-
-