User Guide

Avolites Pearl 2000 Operators Manual - page 79
P2000MAN.DOC 19/10/99 17:59
8. Preset Focuses
8.1 FOCUSES - some definitions
The word FOCUS tends to crop up a lot in Lighting. For the purposed of this
Manual, have defined the term Focus very clearly to avoid confusion.
“Focus” used to describe the direction in which Fixtures are pointed to
illuminate a space or object will be called a Positional Focus.
“Focus” referring to the sharpness or fuzziness of a projected image will be
called Sharpness.
“Focus” meaning a stored reference for a Fixture Attribute will be called a
Preset Focus.
8.2 What is a Preset Focus?
You can consider Preset Focuses as building blocks that are then used to
build Memories or Chase Steps.
⇒ Preset Focuses can contain any or all of the Attributes of a Fixture.
eg. You can have a Colour Preset Focus that contains all your Fixtures of
whatever flavour in the colour red. This may mean that completely different
values have been stored for your colour changers than for your
Intellabeams, but the result is that you can Select your entire rig of Intelligent
Fixtures, recall this Preset Focus and they will all go red.
When you use a Preset Focus to build a cue, you store a reference to the
Preset Focus, not the absolute Channel levels the Fixture is currently
outputting. The Fixture retrieves the values from the Preset Focus.
Therefore you can change a Preset Focus and have the revised information
replayed in Memories and Chases that use it.
This is very handy!!
eg. If you are touring a show, the truss height and position relative to the
stage may be very different from one day to another. You can store
Positional Preset Focuses to enable you to light the same stage positions
every day without having to edit every cue. Checking and setting Preset
Focuses is far easier than editing each Memory.
A clever use of Preset Focuses is to align colours on analogue colour
changers. Different changers may require different levels to go to the same
colour. You can make up Colour Preset Focuses to compensate for this. If
you have to change out a colour changer simply correct the Preset Focuses
with the new unit and the Memories will be correct.
Preset Focuses can contain more than one Attribute. You could make up
Gobo Preset Focuses, which not only store a gobo, but the optimum
Sharpness value for projecting it clearly, but each Preset Focus can only
have one value for each Attribute for each Fixture.