I've been pondering the chances of this being an (easy) reality. We use digital cameras. Our lenses have electronic information. We edit digitally. I wonder if there's a program that increase aperture in post with one simple step? Say if I shoot in f/22 and then later in post I wish I would have used a 2.8 or 3.5. Inside my editing program, I could select which lens I used and increase the aperture, therefore reducing the depth of field in the photo but still retaining what the photo would look like if I had originally used the 2.8 or such. I'm assuming this function would be lens-specific in order to accurately recreate out of focus elements each lens produces. But if the point of focus is recorded in the meta data in your photo, then the app would use that as the centering for the increasing of aperture. I don't think it could work the other way and increasing focus because it'd have to create, but out of focus is a possibility because it utilizes a clear image and then breaks it down. Is there anything out there like this?