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Kenko Variable NDX Manual

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Summary of Contents for Kenko Variable NDX

  • Page 1 Just turn the outer filter ring...
  • Page 2 For information of other language than English, please visit our web-site of following URL. http://www.kenkoglobal.com/ndx...

  • Page 3: Table Of Contents

    Contents Newly Developed Unique Design Easy to Operate / Easy Framing / Easy Focus Polarizing Effect Cancellation / DMC - Digital Multi-Coated Avoid Vignetting The Benefits of Having a Depolarization Plate Exposure Values Chart 10 For Longer Exposures 12 For Wider Apertures 14 Prevents Overexposure / Highlight Clipping 16 For HDSLR MOVIES 18 Safety Precautions...

  • Page 4: Newly Developed Unique Design

    Newly Developed Unique Design Kenko’s uniquely designed variable neutral density filter provides the equivalent brightness range of ND 2.5 to ND 1,000. (practical use being up to ND450). EXPOSURE MAGNIFYING FACTOR 1000...

  • Page 5: Easy To Operate / Easy Framing / Easy Focus

    Easy to Operate / Easy Framing / Easy Focus With a tripod mounted camera, use the brightest setting for framing and focus and then increase the density to your desired level by simply turning the outer filter ring. 1. Framing and Focus 2. Turn the outer Ring 3.

  • Page 6: Polarizing Effect Cancellation / Dmc - Digital Multi-Coated

    Polarizing Effect Cancellation The Variable NDX filter changes the brightness of light using a polarized filter. This new filter uses a “polarizing effect cancellation” where a polarized filter is used, but purely for controlling the amount of light with no effect on color balance, glare or reflections.

  • Page 7: Avoid Vignetting

    Avoid Vignetting The singular versatility of the Variable NDX filter not only replaces a whole set of stacking neutral density filters it also removes vignetting which may be caused by using multiple filters. With Variable NDX filter Stacking ND filters...

  • Page 8: The Benefits Of Having A Depolarization Plate

    2 layers of polarizing film. Light reduction effect - Small Light reduction effect - Large Variable NDX Filter - Color change is minimized. F4 1/500sec. F4 1/250sec. F4 1/125sec. F4 1/60sec.

  • Page 9: Exposure Values Chart

    Exposure Values Chart The Variable NDX filter changes exposure values by rotating the front element of the filter. In order to evaluate the correct exposure to use, please refer to your camera’s built in meter. (Please note: The scale position on the side of the filter is not proportional to the ND values).

  • Page 10: For Longer Exposures

    For example, without adjusting the aperture, the same 1/60 scene can be taken using the Variable NDX filter with shutter speeds from 1/20 to 6 seconds, with just a turn of the outer filter ring.
  • Page 11 Without Filter F8 1/500sec. Without Filter F14 1/20sec. With Variable NDX filter F8 0.6sec. With Variable NDX filter F14 10sec. With Variable NDX filter F8 1.3sec. With Variable NDX filter F14 10sec.

  • Page 12: For Wider Apertures

    For Wider Apertures With the Variable NDX filter, the shutter speed remains constant for a wide aperture easily creating a blurred background effect. With Variable NDX F1.4 1/4000sec. Without filter F4 1/1250sec. With Variable NDX F1.4 1/4000sec. Without filter F4 1/1250sec.

  • Page 14: Prevents Overexposure / Highlight Clipping

    Prevents Overexposure / Highlight Clipping Even with a shutter speed of 1/8000 seconds, a large aperture of F1.4 or F1.2 can cause overexposure / highlight clipping. With the Variable NDX filter, this overexposure is eliminated. With Variable NDX F1.2 1/8000sec.
  • Page 15 With Variable NDX F1.4 1/5000sec. Without Filter F1.4 1/8000sec. With Variable NDX F1.2 1/6400sec. Without Filter F1.2 1/8000sec.

  • Page 16: For Hdslr Movies

    For HDSLR MOVIES For HD video-enabled cameras, use the Variable NDX filter to easily adjust light control and shutter speed. The Variable NDX filter makes it simple to produce blurred background effects, simulate a night scene or create manual fade in / fade out effects. It is also perfect for use in bright locations such as beach or snow scenes and city scapes.
  • Page 17 Blurred background effects Blurred background effects Prevents overexposure Simulate a night scene City scapes Time leap video...

  • Page 18: Safety Precautions

    Safety Precautions Human injury or material damage may occur if filter is used mistakenly because instructions are not observed. Do not drop or impact filters. If glass breaks, do not touch it with bare hands, as doing so may cause injury. Moreover, filter frame may become misshapen, and unattachable to lens.

  • Page 19: Structural Weakness - Color Shift / Upkeep

    Structural Weakness - Color Shift When using a neutral density higher than 450, cross-like color variations may occur. Structurally this problem cannot be eliminated due to the 2 layers of polarizing film. Upkeep To clean off dirt from glass, add a small amount of lens cleaner to a lens cloth or lens paper, and wipe the lens as if drawing a circle.
  • Page 20 • There are some specialist wide-angle lenses that have extremely protruding front eye centers. Attaching a filter to such a lens may KENKO INTERNATIONAL DIVISION cause contact between filter and lens, possibly scratching the 3-9-19 NISHI-OCHIAI, SHINJUKU-KU, TOKYO 161-8570 JAPAN...

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