ARRI Tilt Focus, Instruction Manual

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ARRI Tilt Focus
11
5. Operation
5.1 Focusing
Focusing is carried out using the lens’ focusing ring.
• After tilting, it is essential to check focus again
on the camera’s ground glass. Through tilting the
line of focus drifts out of the centre.
5.2 Adjusting the
Working Aperture
The working aperture can be adjusted on the
aperture ring according to the light values measured.
• When tilting the lens, the viewfinder image will
darken somewhat. This relates only to the
viewfinder and will not be visible on the film!
5.3 Tilting
On lenses which are mounted rigidly to the camera,
the focused plane runs parallel to the filmplane. In
tilting a Tilt Focus lens, the focused plane is displaced
in accordance with the tilting movement.
The Tilt Focus lenses thereby enable:
• free displacement of a focal plane, i.e. focusing on
an object plane not parallel to the filmplane, or