12/26/2023 0 Comments Full frame vs aps c vs micro 4 3![]() divide it by two) compared to the FF (e.g. If you use a lens on the MFT with half the focal length of the FF but open the aperture four stops (i.e. 25mm MFT) and the same aperture, you will get the same picture, except for the depth of field (DOF), which would be deeper on the MFT. If you use a lens on the MFT with half the focal length of the FF (e.g. Yes, if you use the same lens on a full frame (FF) camera and a Micro 4/3rd (MFT) camera, they will have the same depth of field - only the smaller sensor will show, as you say, what is essentially a crop of the bigger sensor. ![]() By that logic, focal length is an INDIRECT variable that affects depth of field. The fact that you know that 100mm f4 = 25mm entrance pupil tells me you agree with me 100%. This is where you failed miserably: you said, "what if you don't change the sensor size?" Well then there would be no reason to change lens or do a crop factor calculation then, would there? By changing lens you would change the field of view and not have the same image making your point irrelevant. ![]() I gave an appropriate crop factor calculation" By Changing the Focal length, you are changing the entrance pupil size. You said, "to get the same field of view you have to change the focal length which changes the depth of field" "i agreed, but not for the same reasons you think. You said "focal length directly affects depth of field." I said "wrong, focal length affects entrance pupil which affects depth of field" hence only two variables. I'm so sorry you have little dick syndrome! So desperate to be right. ![]()
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