Originally posted by aleonx3 Did it ever occur to you that your manual focus lenses may need some AF adjustment before you can nail the shot? Your A or K/M lenses may have FF/BF issues whereas your DA or DA* lenses may be okay. On my k-5IIs, no AF adjustments needed for DA* or limited lenses, but all my m42 and K/M lenses need -10 to correct FF. Also, are you relying on the appearance of green hexagon to confirm focus in the camera? Don't count yourself out yet....
Now approaching the tender age of 61. I aquired my first DSLR with A/F about 5 years ago, I immediately wondered what I had missed all those years with M/F. Still I often use M/F for close up work where I find A/F just does not pick the right zone.
Back to basics.
Check diopter adjustment.
Use smaller apertures f8-f11
Use higher shutter speeds 1/250th
Make sure SR is on. Note SR cannot compensate for lateral movement up, down and sideways not forward and backward motions. Personally I find I have little trouble controlling lateral movement but forward and bacward movements during close up work greatly affect my focus.
Brace your body against something solid
Check your grip, left hand under the camera with left arm tucked into the body.
Shoot lots of images, its all good practice.