Sony Digital Betacam DVW-700 Operation Manual page 225

Diopter
A measure of lens power ; its unit is the reciprocal of 1 m (3.28 ft). A
diopter lens is a simple supplementary lens placed over the main camera
lens to alter its effective focal length.
Drop frame mode
SMPTE time code runs at 30 frames / second, while the NTSC color
television system runs at about 29.97 frames / second. This means that a
length of 1 hour as indicated by time code is longer than the actual clock
time of 1 hour by 108 frames, or about 3.6 seconds. Drop frame mode
adjusts the running of time code to eliminate this discrepancy by
dropping two frames from the time code value at the beginning of each
minute except every tenth minute. In contrast, non-drop frame mode
does not adjust the discrepancy between time code value and actual time.
EBU
European Broadcasting Union. Established by broadcasting and related
A
organizations in Europe.
E-E mode
Electric-to-Electric mode. When you operate a VTR in E-E mode, input
video and / or audio signals pass through electric circuits only and then
come out from the output connectors, without passing through
electromagnetic conversion circuits such as recording heads. You can
use E-E mode to directly check and monitor the input signals without
recording them on tape.
EFP
Electronic Field Production. The use of electronic equipment such as
portable video cameras, VTRs, and sound equipment for television
production outside studios.
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Appendix