Nikon D850 Review

When using manual focus lens, you can turn on focus peaking to see which parts of the picture in in focus, as there will be a colour (by the default settings red) "painted" to tell you that that part of the picture is in focus

Also know as focus stacking, this camera is able to do focus shift photography on its own after the set up, thus it will not be so tedious in terms of capturing the photo.