ARRI Tilt Focus Instruction Manual
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ARRI Tilt Focus Instruction Manual

ARRI Tilt Focus Instruction Manual

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Tilt Focus
Instruction Manual
as of May 1999

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Summary of Contents for ARRI Tilt Focus

  • Page 1 Tilt Focus Instruction Manual as of May 1999...
  • Page 2 scale for tilt clamping for tilt socket for flexible shaft clamping for rotating the lens...

  • Page 3: Table Of Contents

    5.3 Tilting ..........11 Scheimpflug Condition ..... 14 Working examples ......15 Setting a focal plane ......15 Isolating a particular subject area with selective focusing ...... 16 5.4 Turning ..........17 6. Technical Data ........19 7. ARRI SERVICE ........20...
  • Page 4 ARRI Tilt Focus...

  • Page 5: Safety Specifications

    • Clean optical surfaces only with a lens brush or a clean lens cloth! In cases of solid dirt moisten a lens cloth with pure alcohol. • Do not use solvents to clean the Tilt Focus Lens! • Do not loosen any screws which are painted over!

  • Page 6: Product Identification

    ARRI Tilt Focus Product Identification When ordering parts or accessories, or if any questions should arise, please advise your type of product and serial number. Meaning of the symbols in this user manual indicates objects which are shown photo in illustrations.

  • Page 7: General Description

    ARRI Tilt Focus 3. General Description The ARRI Tilt Focus lenses can be tilted out of their optical axis and turned. This is possible because the lenses depict a larger image circle than is necessary to cover the actual negative format.
  • Page 8 ARRI Tilt Focus...

  • Page 9: Mounting The Lens

    ARRI Tilt Focus 4. Mounting the Lens • Pull tight the clamp on the lens for lens rotation photo. • Open the bayonet ring on the lens mount receptacle of the camera completely by turning anti-clockwise. • Push the lens into the lens mount receptacle without catching it.
  • Page 10 ARRI Tilt Focus...

  • Page 11: Operation

    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: •...
  • Page 12 This could also be caused by a matte box, despite a sufficiently large image circle. • Before tilting, the corresponding locking knob on the Tilt Focus lens must be released. photo • When tilting the lens, the viewfinder image will darken somewhat. This relates only to the...
  • Page 13 ARRI Tilt Focus • A flexible shaft, K2.34890.0, can be used on the operating knob for tilting to enable photo comfortable adjusting. scale socket for flexible shaft...

  • Page 14: Scheimpflug Condition

    ARRI Tilt Focus Scheimpflug Condition By tilting the lens it is possible to adjust a focal plane that is not parallel to the filmplane. The Scheimpflug Condition establishes that a plane in the subject area will be depicted in focus when •...

  • Page 15: Working Examples

    ARRI Tilt Focus Working examples standard-situation without tilt focus depth of field standard lens lens plane film plane object plane Setting a focal plane settings according to the Scheimpflug condition object plane lens plane film plane depth of field...

  • Page 16: Isolating A Particular Subject Area With Selective Focusing

    ARRI Tilt Focus Isolating a particular subject area with selective focusing object plane depth of field lens plane film plane By setting the lens plane against the Scheimpflug Condition, an extremely small depth of field can be achieved. This can be used for optically isolating...

  • Page 17: Turning

    • Before turning the lens, the clamp for lens rotation on the Tilt Focus lens must be photo released, and after turning fixed in position. The lens has soft stops every 90°. If a stop is not...
  • Page 18 ARRI Tilt Focus...

  • Page 19: Technical Data

    ARRI Tilt Focus 6. Technical Data Mount camera side ..PL-mount Rotation ...... 360 degrees Tilt-Adjustment ..... + / - 8 degrees (scale division = 1 degree) 24/T4 45/T2,8 90/T2,8 Focal length: ....24 mm 45 mm 90 mm Max. aperture: .... 1:3.5 1:2.8...

  • Page 20: Arri Service

    600 North Victory Blvd. Burbank, California 91502 phone (818) 841 70 70 fax (818) 848 40 28 e-mail: arriflex@arri.com GB ......ARRI (GB) Ltd. The Movie House 1-3 Airlinks, Spitfire Way Heston TW5 9 NR phone (0181) 848 88 81 fax (0181) 561 13 12 e-mail: sales@arri-gb.com...
  • Page 21 ARRI Tilt Focus Italy ......ARRI ITALIA S.R.L. Viale Edison 318 20099 Sesto S. Giovanni, Milano phone (02) 26 22 71 75 fax (02) 242 16 92 e-mail: info@arri.it ARRI ITALIA S.R.L. Via Paolo Orsi, 47 00179 Roma phone (06) 72 67 07 97 fax (06) 723 15 41 Canada ....
  • Page 22 ARRI Tilt Focus © ARRI/JT Technical data are subject to change without notice Printed in Germany Ident-Nr. for Instruction Manual: K5.52427.0 available Languages German English ARNOLD & RICHTER CINE TECHNIK TÜRKENSTR. 89 D-80799 MÜNCHEN TEL. (089) 3809-0 • • FAX (089) 3809 - 1244 http://www.arri.de...

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