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Heliopan > 
Item#: 9SIA1T50NW0547

Heliopan 49mm Neutral Density 0.9 - 8x Filter

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Neutral Density filters are important tools for controlling light reduction. They permit less depth of field under bright lighting since the aperture has to belarger and, in addition, they permit long time exposures with stronger ND filters in sunlight. With digital imaging over exposure can be avoided resulting in natural colorreproduction. ND gray filters are manufactured from color neutral Schott glass so they can be used for color imaging. They are available in 3 densities.Higher densities are available on special order for technical and scientific applications. On most digicams the imaging sensor is smaller than the 35mm format. Thisresults in a relatively large depth of field, even with a large aperture opening this can be disturbing - when eg. A portrait has to be separated from the bakkgroundand the available light requires the use of a smaller aperture, reducing the available light allows the choice of the best aperture. Also with digicams that only operate in full auto mode, the depth of field can be reduced.Digicams frequently have fewer apertures then film cameras, (eg. 2.8 to 5.6 or 2.0 to 8.0) a neutral density filter allows a much larger choice of exposure combinations.


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Heliopan

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LENSES & ACCESSORIES

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Home > 
Electronics > 
Digital Cameras > 
Digital Camera Accessories > 
Camera Filters > 
Heliopan > 
Item#: 9SIA1T50NW0547
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