- One of the key topics related to focus…is depth of field, in other words,…the range that's going to be in focus for our scene.…We can establish focus at a specific point,…so for example, if I were photographing this camera,…I can focus on the front of the camera itself,…but I can also make a decision about how much…depth of field I want, how far back to the camera,…how far in front of the camera do I want that focus…to cover, so that maybe I have the entire camera in focus,…maybe I only want the front of the camera in focus,…or in this case, I have another camera in the distance.…
Do I want both cameras in focus,…or only one of the two cameras?…So in large part, this is a creative decision.…For example, with a portrait, if you're photographing…a person you're going to want that person to be in focus,…but more often than not you'll want…the background to be out of focus.…With a landscape, very often you'll want…everything in focus, from the foreground…all the way back to the distant background.…There are several factors that affect depth of field…
Photographer and educator Tim Grey explores these questions and more in this exploration of focus and autofocus. And because sharpness isn't everything, Tim also details scenarios where blur can have more impact.
- What is focus?
- Calculating depth of field
- Looking at focus limitations
- Employing autofocus one shot vs. continuous
- Using manual focus
- Setting and choosing focus points
- Controlling depth of field
- Using intentional blur and bokeh
- Finding focus while panning