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Our stock is strategically distributed across multiple warehouses to ensure swift processing and delivery. For urgent click and collect where products are showing in stock, please call us at 01442 292929 or email sales@proav.co.uk to check for availability.
Our stock is strategically distributed across multiple warehouses to ensure swift processing and delivery. For urgent click and collect where products are showing in stock, please call us at 01442 292929 or email sales@proav.co.uk to check for availability.
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Screw-In Neutral Density Filter
The Tiffen Variable ND filter is a unique, versatile and flexible tool, affording you the convenience of using several Neutral Density filters all in one. Primarily used as a photographic tool for controlling depth of field and exposure, the Variable ND is being sought in the video market as well because it is fast, easy to use, small, lightweight, and does not require additional accessories such as a matte box.
Neutral density filters reduce the amount of light going through the lens into your camera.
By reducing the light you are able to achieve the following:
Before and After Shots
The Tiffen Variable ND filter operates on the same principle as a Circular Polarizer – rotate until you reach your desired effect and shoot. It allows you to have continuous control over the amount of light coming through your lens in an approximate range of 2 (ND 0.6) to 8 (ND 2.4) stops – while maintaining the integrity of your image. Note: The evenly spaced indexing marks between MIN and MAX do not represent calibrated stops. They are for reference only, to be used as a density bench-mark to return to a previous setting.
Your Tiffen Variable ND should be handled with care to avoid dirt, scratches and fingerprints. Store it in its protective pouch when not in use. Your filter can be damaged by being dropped, by overexposure to extreme temperatures or humidity, improper cleaning, or by being left unprotected in direct sunlight. Use cleaners that are made specifically for cleaning filters and optical lenses and follow product instructions.
Only use your Variable ND within its recommended 2 to 8 stop range. If you go beyond the “MAX”, you may experience an uneven exposure or color shift that appears as an “X bar” in the image. This is more common when using higher densities on full frame cameras; however, can be experienced on any camera. This is a common issue– it’s the law of physics when combining two polarizing filters; however, this issue can be eliminated. First, adjust your focal length and then reduce the density (stop value) setting by rotating the filter ring until the color shift disappears.
The Tiffen Variable ND has a thin profile with a wider outer ring to help eliminate vignetting when using wide lenses. However, due to the vast number of combinations of cameras, lenses, sensors and other factors, we can NOT predict under what circumstances vignetting will occur and to what degree. We suggest simply adjusting your focal length, position and/or composition to remove the vignetting—use your digital camera’s display for reference.
NOTE: The small indexed dots on the filter ring between “MIN” and “MAX” density settings are intended for reference only. They are not representative of a specific density (stops).
Mount your Tiffen Variable ND to the front of your lens and set to the “MIN” (lightest) density. Frame and focus as usual on the minimum density setting. Sometimes your lens may not focus properly on a heavier (darker) density. If this occurs, focus at the “MIN” density setting, then turn off Auto Focus (set on Full Manual Mode) and turn the ring to the desired density. The heavier the density, the slower your shutter speed will be. This longer exposure allows the shutter to remain open long enough to record the same amount of light.
For example, when shooting outdoors your camera’s shutter speed may be set at 1/500 at f8 with no Variable ND on the lens. By adding a Variable ND filter to your lens and setting it at the minimum density (2 stops) the shutter speed is now 1/125 at f8 and at maximum density (8 stops) your camera’s shutter speed would be ½ second at f8. This could be converted into even slower equivalent exposure by reducing the lens aperture - 1 second at f11, or 2 seconds at f16, or 4 seconds at f22.
Key Features: