<p>I am aware of the Dawes limit and what the Airy disk is and how they are calculated. My question is about what you would see in the image plane when a scope is set up perfectly and you get the absolutely best possible image from it, with each point-source of light resulting in its set of diffraction rings )the central ring effectively being the Airy disk). In such a situaiton if you increase the magnification, so that the image is simply larger, do you get a larger, better-resoultion image of the diffraction rings, or does it just get blurry?</p><p> I was considering these issues and came up with an algorithm that could take the image, with its diffraction rings, and generate an "ideal" image from it, in which each set of diffraction rings is effectively reduced to a single, ideal point of light in the image. So, I'm wondering if my algorithm will actually work on a real diffraction-limited image.</p><p> I've implemented my algorithm and it does seem to work, at least on simulated test images. If someone can tell me how to include images in a forum posting I'll be glad to show what I've done.</p><p>Does this kind of algorithm already exist?</p>