Depth of Field

Here are a couple of videos that explain how to get different depths of field by using various techniques.

This video gives you an overview of the topic:

https://www.youtube.com/watch?v=iHxG1f3X1f4

This video explains how you would apply depth of field to your pictures and introduces concepts like plane of focus, and the ratio of what is in focus in front of and behind your point of focus.

https://www.youtube.com/watch?v=dGmpNslYuiY


Here are some other pages that explain depth of field

https://www.techradar.com/how-to/photography-video-capture/cameras/what-is-depth-of-field-how-aperture-focal-length-and-focus-control-sharpness-1320959

https://digital-photography-school.com/understanding-depth-field-beginners/

https://photographylife.com/what-is-depth-of-field

https://petapixel.com/2016/05/18/depth-field-explained/