In need of a solution to match perspective and scale on the clean plate I’ve been compositing to on my latest project I looked to Magic Lantern for a solution. I knew that Magic Lantern supported ghost images, 50% opacity faded images captured on the camera played on top of the lcd screen to align panoramas and whatnot. I could not use this feature with footage not taken with my camera. I then thought to use the cropmark feature. I ended up creating an 8-bit BMP of a still frame from the footage to be used as a cropmark.