ARRI True Blue ST1 - Manual (Page 3)

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ARRI | TRUE BLUE
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True Blue offers two new designs of top latch to suit the application. The
Studio Top Latch is simple and easy to use and can be turned completely out
of the way to load and unload accessories. The Location Top Latch is
specially coated for improved corrosion resistance and is sprung loaded for
fast operation even when hot.
Top Latch
Finally an easy solution to an old problem. Location crews need space in the
accessory bracket for up to four scrims; studio crews suffer from the light
leak this creates. Now two-position TRUE BLUE accessory brackets quickly
adjust in or out for two or four scrims. By reducing the space between the
scrims and the lens, unwanted reflected and spill light is minimised.
Adjustable Accessory Brackets
TRUE BLUE fixtures have been designed for serviceability with more common
parts across the line. Removing a maximum of six universal Torx screws
provides easy access to all interior parts. TRUE BLUES require only three Torx
drivers to disassemble the complete fixture.
ARRI’s new aluminium extrusion makes cleaning fixtures easy and our new
paint process ensures that TRUE BLUES will look as great as they perform.
Maintenance
We’ve named this component after its inventor and the principal designer of
ARRI TRUE BLUES. With this combination connector and strain relief, the
power cable can be quickly reoriented for stand mount or hanging fixtures.
In addition, the connector, along with ARRI’s new lampholder, allows us
to eliminate the interior terminal block.
* Patent pending
Stegmaier Connector*
ARRI’s cross cooling* system moves a stream of air around the Fresnel lens
and through the lamphead. In addition, air is channeled through the
aluminium extrusion housing, reducing lens temperature by 17% and
housing temperatures by 25%. Cross cooling* allows ARRI TRUE BLUES to
safely operate at almost any tilt angle.
* Patent pending
Cross Cooling*
Modern fixtures use a wide variety of Chimeras, scrollers and other front
mounted accessories. Simply slide ARRI’s innovative stirrup bracket to quickly
and easily adjust the fixture’s centre of gravity.
* Due to the smaller size of the fixture, the sliding stirrup is not used on the T1.
Sliding Stirrup
ARRI’s new design creates a positive lock so there’s no slippage when using
heavy accessories. A stainless steel friction disc functions like a disc brake
allowing the lamphead to be completely locked off with a minimum of force.
* Due to the smaller size of the fixture, the friction disc tilt lock is not used
on the T1.
Tilt Lock
TRUE BLUE fixtures are
manufactured to the IP23 standard
and are suitable for indoor use or
outdoor use providing a degree of
protection against falling rain (up to
a 60˚ angle from vertical).
Improved Weather Protection/IP23
All True Blue fixtures carry not only CE declaration but also an independently
assessed TUV certification.
Safety Certification
New ARRI barndoors use a special alloy with a high strength-to-weight ratio.
The leaves in our new design withstand bending and deforming far better than
traditional barndoors. In addition, leaves are now easily tightened to avoid
slipping and the larger leaf design provides better control and sharper cutoff.
The same features are incorporated in a new optional eight leaf barndoor.
Barndoors
Although the top latch holds
accessories securely at any tilt
angle, both Studio and Location
lampheads feature a second safety
catch mounted on the bottom
accessory bracket. This eliminates
the need for a barndoor safety bond
without restricting the rotation.
Barndoor Safety Catch
The laser cut hexagonal
safety mesh maximizes
light transmission and
is tough enough to
withstand location abuse.
Stainless Steel Lens Protection
Easy to carry, ARRI’s new aluminium extrusion stirrup is smooth, incredibly
strong and extremely lightweight.
Stirrup Contour
Studio Top Latch Location Top Latch
Two Scrim Position Four Scrim Position