Sony PMW-300K1 Operating Instructions Manual page 119

Adjustments of the lens functions
When the supplied or optional exclusive lens is
used, the following functions can also be
controlled from the Remote Control Unit.
RM-B170
Function
1)
Focus adjustment
1)
Zoom operation
Iris adjustment
Iris close
Switching between auto iris and
manual iris
1)
When the function is adjusted/operated on the RM-
B170, adjustment/operation on the camcorder is
disabled.
Operation on the lens
Focus ring
Zoom ring
Iris ring
IRIS switch
Operation on
the RM-B170
yes
yes
yes
yes
Operating via the REMOTE Connector 119