Thinking a lot about DOF as I am getting into macro. I know DOF gets shallower as you get closer to the subject, and also as you increase the focal length of the lens. Conversely DOF gets deeper as you go to a shorter/wider focal length and also deepens as you increase distance to subject.
Does the difference in DOF between a wider angle lens and a more telephoto lens equalize if you frame exactly the same? In other words if you stand closer to the subject with the wide lens and farther away with the longer lens, so the framing is the same, will the DOF be the same? I realize the longer lens will compress the scene more and produce more bokeh, but what about the DOF? There might be some kind of way to use geometry along with a DOF calculator and an AOV chart for lenses but that just hurts my head.
Does the difference in DOF between a wider angle lens and a more telephoto lens equalize if you frame exactly the same? In other words if you stand closer to the subject with the wide lens and farther away with the longer lens, so the framing is the same, will the DOF be the same? I realize the longer lens will compress the scene more and produce more bokeh, but what about the DOF? There might be some kind of way to use geometry along with a DOF calculator and an AOV chart for lenses but that just hurts my head.