I enjoyed these four videos and am very much looking forward to seeing the others when they are ready. I find it pleasurable and informative seeing excellent photographers out in the field - what equipment they use and how they use it, how they approach selecting and framing a subject, etc.
I got a kick out of seeing the framing card used by Charlie. When I shot large format I often used a commercially made card that had a printed scale on a cloth measuring-type tape that showed the lens focal length (frame the subject and then note where the thumb fell on the measuring cloth tape, with thumb up near the eye, and you'd have your approx focal length for the shot; different scales for 4x5, 8x10, and even 5x7 with a different card due to the aspect ratio difference). It did help and save time and effort dealing with the cumbersome view camera set up. I don't need it now, as I'm doing small format digital with just a couple of different focal length lenses, but there are times when it could come it handy.
As a bonus it would be cool to see (or just hear) Charlie play some piano pieces, being a music lover myself. Maybe as background music to part of a forthcoming video. Music to photograph and post-process by :-)
Dan