Picked up a Roki 300mm f6.3 for my EOS-M just to play with. In good light, it's not bad for the cost. This will never replace an AF capable 300mm, but considering the camera and lens together will fit in my coat pocket, it's pretty handy tele setup. I need to try it mounted on a monopod. Holding the camera and lens out in front of me with no IS while keeping the image somewhat steady is no easy task.
Focus point was the bicycles
Focus point was the trash cans
Focus point was the student jogging away. Looks like the closer student and sign are sharper, so I missed a bit here.
Focus point was the food court sign. Again, the light is sharper, so I was a bit off here as well.
This is not an easy lens to use, but I'm hoping with practice I'll get better. I may try ML for the EOS-M since it has focus peaking.