One 3/8'' and one 1/4'' would be nice. Is often the case with various mounts.

You still see measuring tape in many making-off's, but I'd imagine it is often replaced with an electronic "ruler". It is also a fact that (long throw) cine style lenses are equipped with a very accurate distance scale, so this is still important.

Here is an article on my work: http://audio.blumlein.net/References/1308xx_ProfessionalAudio.pdf

@sebastian I got started in the Canon world, added bodies and lenses, and ML enables me to have the cameras running and recording continuously. So this is where I'm at ;-)

MagicLantern has the option to aliminate any overlays, but like I said the output is scaled down from 1920x1080 with black borders.

@sebastian I use EOS 550D & 600D cameras running MagicLantern. The HDMI-output is scaled down from FullHD though, so there is a frame I have to get rid off in post, and it is 59.95i with a weird cadence. I am considering getting a Teranex converter that would allow me to up-scale in realtime and change the framerate to a clean 25p.

I participate in MusoTalk occasionally (http://www.musotalk.de/). They have a multiple Skype-connection-setup and live editing is done with the ATEM, the model after the TV-Studio. I myself use the TV-Studio (in conjunction with several Canon DSLR's) for live edit jobs and it works fine.

I measured several items with 3/8'' attachments. LedZilla: 6mm socket (when off it's mounting screw!). Jag-35 DSL-plate: 5mm screw. Inexpensive ball-head: 5mm screw.