Canon CN20x50 Operation Manual
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Canon CN20x50 Operation Manual

Canon CN20x50 Operation Manual

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Zoom Lens
CN20x50
OPERATION MANUAL " Lens "
Read this operation manual before using the product.
ENG

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Summary of Contents for Canon CN20x50

  • Page 1 Zoom Lens CN20x50 OPERATION MANUAL " Lens " Read this operation manual before using the product.
  • Page 2 Memo...

  • Page 3: English Version

    ENGLISH VERSION...
  • Page 4 Memo...

  • Page 5: Product List

    － FOREWORD － Thank you for purchasing the Canon zoom lens. This product comes with the following documents for the models mentioned below: • Operation Manual "Before Using The Product" （Included with the product） • Operation Manual "Regulations" （Included with the product）...

  • Page 6: General Safety Information

    4. Take measures to avoid sudden changes in temperature where the lens is used, which may prevent operation temporarily if condensation forms in the lens. 5. Before use in particular environments, such as places where chemical products are used, contact your Canon sales representative or dealer. Using in particular environments may cause the malfunction of the product.

  • Page 7: Maintenance And Inspection

    4. For further information on repairs, maintenance, or adjustments not mentioned in this operation manual, contact your Canon sales representative or dealer. 5 Note that Canon may be unable to undertake servicing or repair of a product if it is modified without consulting Canon or your Canon sales representative.
  • Page 8 Memo...
  • Page 9 1 NOMENCLATURE 2-1. MOUNT THE LENS ON THE CAMERA 2-2. MOUNT THE HOOD ON THE LENS 2 HOW TO MOUNT 2-3. TURN IT ON 2-4. AVAILABLE ACCESSORIES 2-5. DIMENSIONS OF PARTS 3-1. BACK FOCUS ADJUSTMENT OF THE LENS 3 ADJUSTMENT 3-2.
  • Page 10 1 NOMENCLATURE 1 NOMENCLATURE ① Iris Gain Adjusting Trimmer ⑪ ⑧ ⑨ ② Focus Ring A ⑫ ⑦ ⑬ ⑩ ③ Focus Ring B ⑭ ⑥ ⑮ ④ Max. Zoom Speed Adjusting Volume ⑤ ④ ⑤ Instant Auto-Iris Switch ⑯ ③...

  • Page 11: How To Mount

    2 HOW TO MOUNT 2 HOW TO MOUNT 2-1. MOUNT THE LENS ON THE CAMERA For PL mount, read the following instructions before mounting the lens. 1. The PL mount supports Cooke’s /i Technology, so make sure that the camera is set to “/i”. 2.
  • Page 12 2 HOW TO MOUNT When the lens is mounted, connect the cable from the drive unit to a power supply equipment such as camera or external power supply. Or if the camera can be powered from the PL mount, connect the cable from the drive unit to the connector below the lens mount.

  • Page 13: Available Accessories

    2 HOW TO MOUNT 2-4. AVAILABLE ACCESSORIES A variety of professional camera accessories are available using φ 19 mm rod adaptors. NOTE Be sure to use the lens holder when mounting the lens on a camera. Be sure to avoid applying excessive force to the lens mount when the lens is mounted on a lens support.

  • Page 14: Dimensions Of Parts

    2 HOW TO MOUNT 2-5. DIMENSIONS OF PARTS (Unit: mm) CN20x50 IAS H/E1 (EF mount) Focus Drive Gear B Iris Drive Gear Zoom Drive Gear Focus Drive Gear A Tie Cable Lens Holder (UNC3/8-16) CN20x50 IAS H/P1 (PL mount) Focus Drive Gear B...

  • Page 15: Iris Gain Adjustment

    3 ADJUSTMENT 3 ADJUSTMENT 3-1. BACK FOCUS ADJUSTMENT OF THE LENS If the relation between the image plane of the lens and the image plane of the camera is incorrect, the object goes out of focus at the time of zooming operation. Follow the procedure below to adjust the back focus of the lens.

  • Page 16: Mode Setting

    4 MODE SETTING 4 MODE SETTING 4-1. OPERATION MODES This product has an information display on which various settings can be customized. There are three operation modes below as a setting menu. One of the operation modes can be selected according to usage and preference.
  • Page 17 4 MODE SETTING 4-3. SETTINGS IN FULL MODE The following 15 settings can be made on the Top screen in Full Mode. 1. Go to MENU screen Initial Top screen in Full Mode 2. Switch users 3. Switch to Basic Mode MENU [ Basic ] [Adj]...

  • Page 18: Zoom Operation

    5 OPERATION 5 OPERATION 5-1. ZOOM OPERATION 5-1-1. Manual Zoom Operation 　Set the zoom operation change-over knob at the bottom of the lens drive unit to MANU. position. 　Turn the zoom ring (or zoom lever) to perform zoom operation. NOTE Zoom Operation Change-over Knob The zoom operation change-over knob must be set to the...
  • Page 19 5 OPERATION 5-1-4. Zoom Track Function (only for servo zoom) The zoom control range (zoom track) position can be set as desired to set the virtual zoom limit in the telephoto end and the widest end. To use the zoom track function, the function should be enabled in advance. A: Setting ON or OFF on the information display (In case of basic mode) Press the DISPLAY switch to turn on the display.
  • Page 20 5 OPERATION 5-1-5. Shuttle-Shot Function This function allows you to switch between the current zoom position and the preset zoom position at the maximum speed. The Shtl The Shtl switch is switch is held down. released. speed speed Current zoom position Shuttle memory position Previous zoom position Before using shuttle-shot function, the shuttle function must be assigned to the VTR, RET, or AUX switch...
  • Page 21 5 OPERATION 2. How to operate the speed preset function When the Sped switch is pressed, the zoom starts to move at the preset speed and to the determined direction (toward telephoto angle or widest angle) stored in section 1 and stops at the zoom end. 3. How to cancel movement in Speed Preset Movement in Speed Preset can be canceled by any of the following operations.
  • Page 22 5 OPERATION Framing Preset [Zoom]/[Focus]/[Z+F] Setting NOTE The following figure is shown as an example. Actual state of the switch may look different if the function is allocated to the different switch. Fr1P function--------Assigned to the AUX switch by factory default. 1. Setting the framing memory position Zoom (and focus) to the position that you want to store, while Zoom Rocker Seesaw...

  • Page 23: Focus Operation

    5 OPERATION 5-2. FOCUS OPERATION 5-2-1. Manual Focus Operation 　When the manual focus operation is performed, set the focus operation change-over knob to MANU. position. NOTE The lens may be damaged if the focus ring is turned forcibly with the knob at the SERVO position. Focus Operation Change-over Knob Turn the focus ring to bring the near or far object into...

  • Page 24: Extender Operation

    5 OPERATION 5-3-2. Manual Iris Operation Slide the iris operation mode change-over switch to the "M" position. The iris operation is performed by turning the iris ring on Close the lens body. NOTE Open The iris operation mode change-over switch must be set to the "M"...

  • Page 25: Macro Operation

    5 OPERATION 5-5. MACRO OPERATION In macro shooting, the object distance becomes shorter than the normal minimum object distance (M.O.D.). The minimum object distance by macro operation for this lens is 1.54 m from tip of the lens at the widest angle.

  • Page 26: Switch Operations

    5 OPERATION 5-6. SWITCH OPERATIONS Functions can be assigned to the five switches: the VTR, RET, AUX switches of the drive unit, or AUX1 and AUX2 switches on the zoom demand on the information display. VTR, RET, Fr1P, Shtl, and Fr1P functions are assigned respectively by default.
  • Page 27 6 HOW TO ATTACH AND DETACH THE DRIVE UNIT 6 HOW TO ATTACH AND DETACH THE DRIVE UNIT This product is structured so that the drive unit can be separated from the lens body. If it is used as a manual lens, detach the drive unit while referring to Section 6-1.
  • Page 28 6 HOW TO ATTACH AND DETACH THE DRIVE UNIT Place the detached drive unit in the supplied storage bag. NOTE • Take care not to damage the drive unit cover when removing the drive unit fixing screws. • Use a Phillips screwdriver with a shaft diameter of 4 mm or less to remove the drive unit fixing screws. •...
  • Page 29 NOTE If a drive unit fixing screw is damaged or lost, use a spare one. If all spare screws are used and additional ones are required, contact Canon Inc. or Canon distributers & sales representatives. Detach the cap from the contact on the lens body, fix the cap on the projection on the main body.
  • Page 30 * For details on how to adjust the mechanical end automatically, refer to "6-3 AUTOMATIC ADJUSTMENT OF THE MECHANICAL END" on the next page. NOTE If an error message appears on the display when the power is turned on, contact Canon Inc. or Canon distributers & sales representatives.
  • Page 31 Succeeded Lens Interface: Connected The adjustment is completed. Press key after adjustment to return to Screen A. NOTE If "Auto-Adjustment: Error/Lens Interface: Non-Connected" appears when the mechanical end adjustment is completed, contact Canon Inc. or Canon distributers & sales representatives.

  • Page 32: Product Specifications

    Approx. 175.0 x 170.6 x 405.2mm（PL Mount） Weight Approx. 6.6 kg NOTE A variety of professional camera accessories compatible with the φ19 mm rod system can be used with this lens. Contact Canon Inc. or Canon distributers & sales representatives for the target accessories.
  • Page 33 Reference Information This lens is a lens for shooting movies. • This lens is developed primarily for movie production, and have a color balance typical for movies. This means that the color reproduction is warmer than that of EF lenses which are basically used to shoot still images. Therefore, when using both types of lens together, adjust the color balance (redo the white balance etc.) as necessary.
  • Page 34 Memo...

  • Page 35: Technical Information

    TECHNICAL INFORMATION...
  • Page 36 Memo...
  • Page 37 EXTERNAL VIEW (1) CN20x50 IAS H/E1...
  • Page 38 (2) CN20x50 IAS H/P1...
  • Page 39 Memo...
  • Page 40 CANON INC. 30-2, Shimomaruko 3-chome, Ohta-ku, Tokyo, 146-8501, Japan BT1-D025-A-ENG ©2022.09 CANON INC.

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Cn20 x 50 ias h

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