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ARRI Tilt Focus Lenses
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The ARRI Tilt Focus lenses offer similar creative possibilities like the ARRI Shift
& Tilt System — without shifting of course, but they can be used more
flexible and on-the fly. The lenses can be tilted out of their optical axis and
turned. They depict a larger image circle than is necessary to cover the actual
negative format. The available focal lengths are: 24mm/T4, 45mm/T2.8 and 90mm/T2.8.
The creative possibilities are considerably more far-reaching than with focus and
aperture stop alone on conventional lenses.Examples of use are the free displacement of a focal plane, i.e. focusing on an object plane not parallel to the filmplane, or isolation of a particular part of an image through a specifically set focal plane. The ARRI Tilt Focus lenses are especially robust and precise. An index scale simplifies exact reproduction of the chosen settings. Focusing is carried out using a normal lens ring into which both normal follow-focus mechanisms and adjustment motors can be inserted. An important advantage of the ARRI Tilt Focus lenses is the fact that the image centre hardly moves at all while tilting the lens, considerably simplifying tilting during a shot. The easily readable aperture scale is calibrated in T-stops, can be read sideways and is printed on both sides of the lens. Unified design, the same front diameter of 87 mm and the gearing of the aperture ring offer further user comfort. |
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