I believe this is the same method used by Canon on the 5DSR to create their "fine detail" mode. When I tested the 5DSR I discovered that my T2i could produce images just as sharp using the same sub-pixel sharpening. It's a good tool for getting the most out of an image taken in that diffraction "grey zone".Chris S. wrote: The particular Photoshop adjustment I tried was suggested by Rik Littlefield. To quote his email: "In comparison, your Micro Nikkor 105 does best at reported f/11. Assuming that means effective f/11, there should still be enough detail in the optical image to outresolve your sensor, albeit at reduced contrast. That being the case, it makes sense to attack with a strong but small sharpening filter, to push up the tail of the MTF curve. I would be interested in your thoughts about how the Micro Nikkor 105 plus a Photoshop USM 100% 0.7 pixels compares to the camera's direct capture from the Printing Nikkor."
I guess we will find out soon. With the A7Riii Robert has a tool which can look a bit deeper into the compo than has been published here before. I started down the path of using a 2x teleconverter but it is only useful for center of the image. Even by corners of APS-C I found the aberrations of the teleconverter were dominant. If the A7Riii compo works it should give results to the corners of FF, which would be a very useful result.Macro_Cosmos wrote:I'm fairly certain the PN would win...