>>3660070>its kind of slow for me to get a shot prepared, with having to manually set exposure and lining up focus with the range finderPractice.
Try this: Go out with your camera in a low-stakes, low-stress shooting situation. Just like wandering your neighborhood.
When you see something you want to shoot, try to estimate the distance from yourself to the subject. Then, use the rangefinder to check.
Keep doing this. Eventually, you'll get to the point where the difference between your estimate and the distance given by your rangefinder will diminish.
Your main goal should be to get it to the point where you can estimate close enough that the right answer is within the depth-of-field you've got with your chosen aperture.
Next step: practice moving your lens to that point by feel when you estimate, so that your lens is already at or close to in focus before you bring it up to your eye or even glance down at your lens' focusing scale.
Do this long enough and you'll get to the point where you can actually focus manually faster than most people can autofocus, just because you're doing it automatically by muscle memory.
I don't have good advice for the exposure issue since my camera has aperture-priority autoexposure and I shamelessly use that crutch 90% of the time, but I assume something similar would work.