Shaping The Beam - ETC Source Four jr User Manual

ETC User Manual
Source Four jr / jr Zoom

Shaping the beam

The beam can be shaped using the shutters, a
pattern, or an optional drop-in iris.
Pattern Projection
The pattern holder slot is on the top side of the barrel
and in front of the shutters. It accommodates an
M-size pattern holder (see figure at right). The
pattern holder handle can be bent away from the
shutter handle to keep it from interfering with the
action of the shutter handle.
Use an optional donut in the accessory holder to
enhance pattern projection. Donut diameter range
should be 2.5" to 2.75".
Drop-In Iris Slot
The drop-in iris slot is located on the top of the barrel and in front of the
pattern holder slot. It accommodates either a drop-in iris or a motorized
pattern device. When the slot is not in use, a small sheet metal cover secured
with two Phillips screws prevents light leakage (see figure below).
Drop-in
iris slot
1: Use a Phillips screwdriver to loosen the screws on the drop-in iris slot
cover. Do not remove screws.
2: Slide the cover completely forward to expose the slot.
3: Insert the iris with the flat side toward the shutters and make sure the
iris handle extends from the slot.
4: Slide the slot cover back toward the shutters until it meets the iris
handle. Leave enough space to move the iris handle.
5: Secure the drop-in iris slot cover by tightening the screws.
Source Four jr / jr Zoom
Pattern holder slot
Page 7 of 12
M-Size
Pattern holder
Iris
ETC