Three factors affect Depth of Field (DOF). Let’s first define what DOF is. DOF is a zone of acceptable focus (sharpness) that extends both in front off and behind the point of focus (in portraiture the subject’s eyes).
DOF then becomes a simple mathematical formula. The three variables are as follows,
- Distance to subject (point of absolute focus to film plane)
- Aperture (f/number)
- Focal length of the lens
Beyond the science, you can add computational photography or whatever you want to call artificial intelligence. If the image becomes blended between multiple images produced by different camera and lens combinations with different apertures, different focal length lenses, distance to subject (change perspective) becomes the variable that might make the most difference.
So, with all that said, you need to examine the 3 variables, camera physical differences and then the variables that can be applied by the user to camera settings that affect Computational Photography (AI).
Happy to answer questions.