Pulling focus is basically as easy or hard as you want to do it. If you want a lot of shallow DOF shots in your movie, you're going to have to make sure your getting the focus marks 100% spot on, or it'll look like crap.
I currently run a GH4 w/ Speedbooster which brings the FOV to basically that of Super35 film, and I always pull my own focus.
Pulling focus yourself will be easier if:
a ] You attach a large 7" HD monitor to the rig that has focus peaking.
b ] You have a follow focus that allows you to move to marker toward the back of the camera, so you can actually see the marks.
Of course, its going to be harder for you, since you have to pay attention to not only the framing and the focus peaking, but also your marks on the follow focus. Hard A/B stops are really desired here.
Large format films, large sensors, and/or fast lenses will make pulling your own focus harder. However, with a standard Super35 format, it shouldn't be too hard - considering you have the right tools and understanding.
Edited by Landon D. Parks, 05 February 2018 - 02:36 AM.