DOF Scale

[Paul Jones]

Hi,   I've been playing with a M50/1.4 on an MX and before now I've never taken much not of the DOF scale on the lense. Now by looking at it implies that if I focus to about 12 feet and set the aperture to F22, then everything from 6 feet to infinity will be infocus. So now getting to my point, if I was shooting a landscape and I wanted lots of the foreground in focus then I would focus to 12 feet instead of infinity. Hope this makes sense? When I shoot most landscapes I  focus the camera to infinity, but by focusing to 12 feet I would actually have more in focus. What would I be sacrificing by focusing to 12 feet at F22 in stead of infinity at F22?   Hope my ramblings make sense.   Thanks, Paul Jones