Beam Angles; Motorived Barndoors; Aperture Adxustment; Speed Control - Martin Professional MAC 2000 User Manual

:eam angles
The following tables list the beam angles available with the standard 50 mm Z2 in[ aperture ring fitted. Note
that narrower beam angles can be achieved by fitting smaller aperture rings. Note that light buster mode
provides a high intensity spot with no diffusion and is engaged when the Voom channel is set to -00p.
Standard 7resnel lens
Light buster mode
qoom narrow
qoom wide
4C lens
Light buster mode
qoom narrow
qoom wide
Super wideYangle lens
Light buster mode
qoom narrow
qoom wide
For information about changing the lens see nChanging the front lenso on page 2-.
!otoriXed barndoors
A motoriVed barndoor system that attaches to the front of the fixture is available as a separately orderable
accessory. These barndoors can be rotated, or opened and closed using DMT control signals. Five DMT
channels are allocated for barndoor control irrespective of whether or not they are connected to the fixture.
We have done this to cover the possibility that you rig and begin programming your MAC 2000 Wash and
add barndoors to it later. If the DMT channels were not already assigned, you would have to re-patch your
console and therefore would lose any programming already completed.
"perture adOustment
A 50 mm Z2 in[ aperture is fitted as standard in the optical path of the fixture Xust behind the Voom lens. This
works well with the standard Fresnel lens.
Inside the head of the fixture, three additional aperture rings are secured to the chassis by a thumbscrew.
When using the PC lens, the best beam characteristic is achieved by attaching the 45 mm aperture ring. For
instructions on changing the aperture ring see nChanging the aperture ringo on page 22.
4an and tilt
The yoke pans 540\ and the head tilts 267\. For maximum positioning accuracy, select -6-bit mode.
The pan7tilt speed Zfast, norm, or slow[ may be selected on the pan7tilt speed channel. Setting the pan7tilt
speed channel to nblackouto causes the shutter to black out the light while the head is moving.

Speed control

There are two ways to control the speed at which effects move from one static position to another. These
are known as tracking control and vector control and are selected on the Pan7Tilt Speed and Effect Speed
:eam angle
--\
-5\
40\
:eam angle
-2\
-2\
34\
:eam angle
66\
70\
80\