I've been working with the new Blackmagic URSA and have noticed some horizontal light lines, for lack of better description. Doing some research, I think these are horizontal band lines. It's very noticeable while my shot is completely out of focus while rack-focusing, but is noticeable while completely in focus as well. Is this something I'm doing wrong with my aperture or shutter angle? Is it my lens choice? (I'm just using a 35mm Canon f/2.0, so granted it's not a cine lens or Zeiss) Or is this an issue with the camera itself? Thanks for any help! I know there hasn't been much out with the URSA yet.