Aaton
cameras used to be the only cameras with an efficient
on-board time code generator until they began to
sell their generator as a separate unit. Now Arriflex
and Panavision have optional Aaton time code generators
in their high-end cameras. Time code is encrypted
(exposed) onto the film by the film gate as each
frame is being shot. Needless to say, not everyone
can afford to rent these dream machines - but there
is an affordable alternative if you're shooting
film.