DOF = Depth of Field
This is the focal range. The distance between the nearest and furthest objects in the image.
If very little is in focus you will have a shallow depth of field as in the image below.
(I would have used a wide aperture to take this image)
(My husband would have used a narrow aperture in this image to ensure I was in focus too!)
To explain a little more:
- Using a wide aperture you let more light into the camera, your shutter is faster and less time to capture all the detail in the image.
- In the image of lavender I focused on the flower directly in front of me using a wide aperture of F/2.8 meaning everything behind would blur.
- The smaller the aperture means you will have more detail and more in focus in your photo. The shutter is slower.
- In the image of me beside the pond at Le Manoir (thought I'd name drop!) would have quite possibly been F/11 to keep as much in focus as possible, letting enough light in without camera shake.
- small numbers = large
- ie low numbers = wide aperture and large DOF
- large numbers = small
- ie high numbers = narrow aperture and shallow DOF
Please feel free to leave a comment below if you are unable to understand, or if you can explain in easier terms!