Yes, if what you are seeing on your monitor is sharp then your video will be as well. Rely on only a quality monitor, but at 10X on the camera, if its sharp then it’s sharp.
If I had one wish for DSLR video… throught the lens focus.
If you are moving the camera (dolly) a focus puller is a must at shallow depth of field. Set marks for confidence, if the focus puler feels he missed his mark, check the video.
Dave Tally
Director of Photography / Cinematographer