and Software Binning

I just had a chance to try the software binning for auto focus. I have a D5100 and an AT8RC. It certainly looked very good,

I also have smart focus turned off because of the central obstruction in my AT8RC. So, I was wondering if the software changes to made for the artificial binning in any way change the nature of the donut stars, so I could use smart focus? Thanks


Did you try necking down your focus range so you didn’t generate the donuts?