UV

UV filter is one of the most important filters to own and it should be available for every lens. The filter blocks the invisible UV rays which can cause a loss of sharpness. The use of the filter is particularly recommended for work in the mountains, at the ocean, and in areas with very clear air. The contrasts are heightened, and distorting fog is avoided. The Opteka HD II Multi-Coated UV (0) Ultraviolet Haze Filter cuts haze for sharper black and white prints and corrects the blues and violets in color prints. The filter glass is colorless, and hence no increase in the exposure time is required. Multi-coating can prevent light reflection, ghost light, internal reflection etc, making image clearer and sharper. It can dramatically improve image quality. This is specially important in digital cameras. Since the image sensors CCD or CMOS are highly susceptible to reflections, this stray light can ruin your photographs. Multi-coated glass benefit substantially reduced light reflections, resulting clearer image with greater contrast. This type of filter is also eminently suitable as protection for the front lens, and because of its color-neutral properties it can remain on the camera lens permanently. A scratched front lens element can not be repaired; and replacement is costly. Exchanging a damaged UV filter for a new one is more economical than the purchase of a new lens. High-index / low-dispersion optical glass with HD IITechnology Multi-Coated and heat treated glass to eliminate distortion Pictures gain brilliance and disturbing blue casts are avoided Designed to maximize day and night shots by providing maximum light transmission Penetrates haze, adds warmth, and protects your valuable lens from scratches, dirt, fingerprints, etc. Brand New, Lifetime Warranty

UV filter is one of the most important filters to own and it should be available for every lens. The filter blocks the invisible UV rays which can cause a loss of sharpness. The use of the filter is particularly recommended for work in the mountains, at the ocean, and in areas with very clear air. The contrasts are heightened, and distorting fog is avoided. The Opteka HD II Multi-Coated UV (0) Ultraviolet Haze Filter cuts haze for sharper black and white prints and corrects the blues and violets in color prints. The filter glass is colorless, and hence no increase in the exposure time is required. Multi-coating can prevent light reflection, ghost light, internal reflection etc, making image clearer and sharper. It can dramatically improve image quality. This is specially important in digital cameras. Since the image sensors CCD or CMOS are highly susceptible to reflections, this stray light can ruin your photographs. Multi-coated glass benefit substantially reduced light reflections, resulting clearer image with greater contrast. This type of filter is also eminently suitable as protection for the front lens, and because of its color-neutral properties it can remain on the camera lens permanently. A scratched front lens element can not be repaired; and replacement is costly. Exchanging a damaged UV filter for a new one is more economical than the purchase of a new lens. High-index / low-dispersion optical glass with HD IITechnology Multi-Coated and heat treated glass to eliminate distortion Pictures gain brilliance and disturbing blue casts are avoided Designed to maximize day and night shots by providing maximum light transmission Penetrates haze, adds warmth, and protects your valuable lens from scratches, dirt, fingerprints, etc. Brand New, Lifetime Warranty

UV filter is one of the most important filters to own and it should be available for every lens. The filter blocks the invisible UV rays which can cause a loss of sharpness. The use of the filter is particularly recommended for work in the mountains, at the ocean, and in areas with very clear air. The contrasts are heightened, and distorting fog is avoided. The Opteka HD II Multi-Coated UV (0) Ultraviolet Haze Filter cuts haze for sharper black and white prints and corrects the blues and violets in color prints. The filter glass is colorless, and hence no increase in the exposure time is required. Multi-coating can prevent light reflection, ghost light, internal reflection etc, making image clearer and sharper. It can dramatically improve image quality. This is specially important in digital cameras. Since the image sensors CCD or CMOS are highly susceptible to reflections, this stray light can ruin your photographs. Multi-coated glass benefit substantially reduced light reflections, resulting clearer image with greater contrast. This type of filter is also eminently suitable as protection for the front lens, and because of its color-neutral properties it can remain on the camera lens permanently. A scratched front lens element can not be repaired; and replacement is costly. Exchanging a damaged UV filter for a new one is more economical than the purchase of a new lens. High-index / low-dispersion optical glass with HD IITechnology Multi-Coated and heat treated glass to eliminate distortion Pictures gain brilliance and disturbing blue casts are avoided Designed to maximize day and night shots by providing maximum light transmission Penetrates haze, adds warmth, and protects your valuable lens from scratches, dirt, fingerprints, etc. Brand New, Lifetime Warranty

UV filter is one of the most important filters to own and it should be available for every lens. The filter blocks the invisible UV rays which can cause a loss of sharpness. The use of the filter is particularly recommended for work in the mountains, at the ocean, and in areas with very clear air. The contrasts are heightened, and distorting fog is avoided. The Opteka HD II Multi-Coated UV (0) Ultraviolet Haze Filter cuts haze for sharper black and white prints and corrects the blues and violets in color prints. The filter glass is colorless, and hence no increase in the exposure time is required. Multi-coating can prevent light reflection, ghost light, internal reflection etc, making image clearer and sharper. It can dramatically improve image quality. This is specially important in digital cameras. Since the image sensors CCD or CMOS are highly susceptible to reflections, this stray light can ruin your photographs. Multi-coated glass benefit substantially reduced light reflections, resulting clearer image with greater contrast. This type of filter is also eminently suitable as protection for the front lens, and because of its color-neutral properties it can remain on the camera lens permanently. A scratched front lens element can not be repaired; and replacement is costly. Exchanging a damaged UV filter for a new one is more economical than the purchase of a new lens. High-index / low-dispersion optical glass with HD IITechnology Multi-Coated and heat treated glass to eliminate distortion Pictures gain brilliance and disturbing blue casts are avoided Designed to maximize day and night shots by providing maximum light transmission Penetrates haze, adds warmth, and protects your valuable lens from scratches, dirt, fingerprints, etc. Brand New, Lifetime Warranty

UV filter is one of the most important filters to own and it should be available for every lens. The filter blocks the invisible UV rays which can cause a loss of sharpness. The use of the filter is particularly recommended for work in the mountains, at the ocean, and in areas with very clear air. The contrasts are heightened, and distorting fog is avoided. The Opteka HD II Multi-Coated UV (0) Ultraviolet Haze Filter cuts haze for sharper black and white prints and corrects the blues and violets in color prints. The filter glass is colorless, and hence no increase in the exposure time is required. Multi-coating can prevent light reflection, ghost light, internal reflection etc, making image clearer and sharper. It can dramatically improve image quality. This is specially important in digital cameras. Since the image sensors CCD or CMOS are highly susceptible to reflections, this stray light can ruin your photographs. Multi-coated glass benefit substantially reduced light reflections, resulting clearer image with greater contrast. This type of filter is also eminently suitable as protection for the front lens, and because of its color-neutral properties it can remain on the camera lens permanently. A scratched front lens element can not be repaired; and replacement is costly. Exchanging a damaged UV filter for a new one is more economical than the purchase of a new lens. High-index / low-dispersion optical glass with HD IITechnology Multi-Coated and heat treated glass to eliminate distortion Pictures gain brilliance and disturbing blue casts are avoided Designed to maximize day and night shots by providing maximum light transmission Penetrates haze, adds warmth, and protects your valuable lens from scratches, dirt, fingerprints, etc. Brand New, Lifetime Warranty

UV filter is one of the most important filters to own and it should be available for every lens. The filter blocks the invisible UV rays which can cause a loss of sharpness. The use of the filter is particularly recommended for work in the mountains, at the ocean, and in areas with very clear air. The contrasts are heightened, and distorting fog is avoided. The Opteka HD II Multi-Coated UV (0) Ultraviolet Haze Filter cuts haze for sharper black and white prints and corrects the blues and violets in color prints. The filter glass is colorless, and hence no increase in the exposure time is required. Multi-coating can prevent light reflection, ghost light, internal reflection etc, making image clearer and sharper. It can dramatically improve image quality. This is specially important in digital cameras. Since the image sensors CCD or CMOS are highly susceptible to reflections, this stray light can ruin your photographs. Multi-coated glass benefit substantially reduced light reflections, resulting clearer image with greater contrast. This type of filter is also eminently suitable as protection for the front lens, and because of its color-neutral properties it can remain on the camera lens permanently. A scratched front lens element can not be repaired; and replacement is costly. Exchanging a damaged UV filter for a new one is more economical than the purchase of a new lens. High-index / low-dispersion optical glass with HD IITechnology Multi-Coated and heat treated glass to eliminate distortion Pictures gain brilliance and disturbing blue casts are avoided Designed to maximize day and night shots by providing maximum light transmission Penetrates haze, adds warmth, and protects your valuable lens from scratches, dirt, fingerprints, etc. Brand New, Lifetime Warranty

UV filter is one of the most important filters to own and it should be available for every lens. The filter blocks the invisible UV rays which can cause a loss of sharpness. The use of the filter is particularly recommended for work in the mountains, at the ocean, and in areas with very clear air. The contrasts are heightened, and distorting fog is avoided. The Opteka HD II Multi-Coated UV (0) Ultraviolet Haze Filter cuts haze for sharper black and white prints and corrects the blues and violets in color prints. The filter glass is colorless, and hence no increase in the exposure time is required. Multi-coating can prevent light reflection, ghost light, internal reflection etc, making image clearer and sharper. It can dramatically improve image quality. This is specially important in digital cameras. Since the image sensors CCD or CMOS are highly susceptible to reflections, this stray light can ruin your photographs. Multi-coated glass benefit substantially reduced light reflections, resulting clearer image with greater contrast. This type of filter is also eminently suitable as protection for the front lens, and because of its color-neutral properties it can remain on the camera lens permanently. A scratched front lens element can not be repaired; and replacement is costly. Exchanging a damaged UV filter for a new one is more economical than the purchase of a new lens. High-index / low-dispersion optical glass with HD IITechnology Multi-Coated and heat treated glass to eliminate distortion Pictures gain brilliance and disturbing blue casts are avoided Designed to maximize day and night shots by providing maximum light transmission Penetrates haze, adds warmth, and protects your valuable lens from scratches, dirt, fingerprints, etc. Brand New, Lifetime Warranty

UV filter is one of the most important filters to own and it should be available for every lens. The filter blocks the invisible UV rays which can cause a loss of sharpness. The use of the filter is particularly recommended for work in the mountains, at the ocean, and in areas with very clear air. The contrasts are heightened, and distorting fog is avoided. The Opteka HD II Multi-Coated UV (0) Ultraviolet Haze Filter cuts haze for sharper black and white prints and corrects the blues and violets in color prints. The filter glass is colorless, and hence no increase in the exposure time is required. Multi-coating can prevent light reflection, ghost light, internal reflection etc, making image clearer and sharper. It can dramatically improve image quality. This is specially important in digital cameras. Since the image sensors CCD or CMOS are highly susceptible to reflections, this stray light can ruin your photographs. Multi-coated glass benefit substantially reduced light reflections, resulting clearer image with greater contrast. This type of filter is also eminently suitable as protection for the front lens, and because of its color-neutral properties it can remain on the camera lens permanently. A scratched front lens element can not be repaired; and replacement is costly. Exchanging a damaged UV filter for a new one is more economical than the purchase of a new lens. High-index / low-dispersion optical glass with HD IITechnology Multi-Coated and heat treated glass to eliminate distortion Pictures gain brilliance and disturbing blue casts are avoided Designed to maximize day and night shots by providing maximum light transmission Penetrates haze, adds warmth, and protects your valuable lens from scratches, dirt, fingerprints, etc. Brand New, Lifetime Warranty

UV filter is one of the most important filters to own and it should be available for every lens. The filter blocks the invisible UV rays which can cause a loss of sharpness. The use of the filter is particularly recommended for work in the mountains, at the ocean, and in areas with very clear air. The contrasts are heightened, and distorting fog is avoided. The Opteka HD II Multi-Coated UV (0) Ultraviolet Haze Filter cuts haze for sharper black and white prints and corrects the blues and violets in color prints. The filter glass is colorless, and hence no increase in the exposure time is required. Multi-coating can prevent light reflection, ghost light, internal reflection etc, making image clearer and sharper. It can dramatically improve image quality. This is specially important in digital cameras. Since the image sensors CCD or CMOS are highly susceptible to reflections, this stray light can ruin your photographs. Multi-coated glass benefit substantially reduced light reflections, resulting clearer image with greater contrast. This type of filter is also eminently suitable as protection for the front lens, and because of its color-neutral properties it can remain on the camera lens permanently. A scratched front lens element can not be repaired; and replacement is costly. Exchanging a damaged UV filter for a new one is more economical than the purchase of a new lens. High-index / low-dispersion optical glass with HD IITechnology Multi-Coated and heat treated glass to eliminate distortion Pictures gain brilliance and disturbing blue casts are avoided Designed to maximize day and night shots by providing maximum light transmission Penetrates haze, adds warmth, and protects your valuable lens from scratches, dirt, fingerprints, etc. Brand New, Lifetime Warranty

UV filter is one of the most important filters to own and it should be available for every lens. The filter blocks the invisible UV rays which can cause a loss of sharpness. The use of the filter is particularly recommended for work in the mountains, at the ocean, and in areas with very clear air. The contrasts are heightened, and distorting fog is avoided. The Opteka HD II Multi-Coated UV (0) Ultraviolet Haze Filter cuts haze for sharper black and white prints and corrects the blues and violets in color prints. The filter glass is colorless, and hence no increase in the exposure time is required. Multi-coating can prevent light reflection, ghost light, internal reflection etc, making image clearer and sharper. It can dramatically improve image quality. This is specially important in digital cameras. Since the image sensors CCD or CMOS are highly susceptible to reflections, this stray light can ruin your photographs. Multi-coated glass benefit substantially reduced light reflections, resulting clearer image with greater contrast. This type of filter is also eminently suitable as protection for the front lens, and because of its color-neutral properties it can remain on the camera lens permanently. A scratched front lens element can not be repaired; and replacement is costly. Exchanging a damaged UV filter for a new one is more economical than the purchase of a new lens. High-index / low-dispersion optical glass with HD IITechnology Multi-Coated and heat treated glass to eliminate distortion Pictures gain brilliance and disturbing blue casts are avoided Designed to maximize day and night shots by providing maximum light transmission Penetrates haze, adds warmth, and protects your valuable lens from scratches, dirt, fingerprints, etc. Brand New, Lifetime Warranty

UV filter is one of the most important filters to own and it should be available for every lens. The filter blocks the invisible UV rays which can cause a loss of sharpness. The use of the filter is particularly recommended for work in the mountains, at the ocean, and in areas with very clear air. The contrasts are heightened, and distorting fog is avoided. The Opteka HD II Multi-Coated UV (0) Ultraviolet Haze Filter cuts haze for sharper black and white prints and corrects the blues and violets in color prints. The filter glass is colorless, and hence no increase in the exposure time is required. Multi-coating can prevent light reflection, ghost light, internal reflection etc, making image clearer and sharper. It can dramatically improve image quality. This is specially important in digital cameras. Since the image sensors CCD or CMOS are highly susceptible to reflections, this stray light can ruin your photographs. Multi-coated glass benefit substantially reduced light reflections, resulting clearer image with greater contrast. This type of filter is also eminently suitable as protection for the front lens, and because of its color-neutral properties it can remain on the camera lens permanently. A scratched front lens element can not be repaired; and replacement is costly. Exchanging a damaged UV filter for a new one is more economical than the purchase of a new lens. High-index / low-dispersion optical glass with HD IITechnology Multi-Coated and heat treated glass to eliminate distortion Pictures gain brilliance and disturbing blue casts are avoided Designed to maximize day and night shots by providing maximum light transmission Penetrates haze, adds warmth, and protects your valuable lens from scratches, dirt, fingerprints, etc. Brand New, Lifetime Warranty

UV filter is one of the most important filters to own and it should be available for every lens. The filter blocks the invisible UV rays which can cause a loss of sharpness. The use of the filter is particularly recommended for work in the mountains, at the ocean, and in areas with very clear air. The contrasts are heightened, and distorting fog is avoided. The Opteka HD II Multi-Coated UV (0) Ultraviolet Haze Filter cuts haze for sharper black and white prints and corrects the blues and violets in color prints. The filter glass is colorless, and hence no increase in the exposure time is required. Multi-coating can prevent light reflection, ghost light, internal reflection etc, making image clearer and sharper. It can dramatically improve image quality. This is specially important in digital cameras. Since the image sensors CCD or CMOS are highly susceptible to reflections, this stray light can ruin your photographs. Multi-coated glass benefit substantially reduced light reflections, resulting clearer image with greater contrast. This type of filter is also eminently suitable as protection for the front lens, and because of its color-neutral properties it can remain on the camera lens permanently. A scratched front lens element can not be repaired; and replacement is costly. Exchanging a damaged UV filter for a new one is more economical than the purchase of a new lens. High-index / low-dispersion optical glass with HD IITechnology Multi-Coated and heat treated glass to eliminate distortion Pictures gain brilliance and disturbing blue casts are avoided Designed to maximize day and night shots by providing maximum light transmission Penetrates haze, adds warmth, and protects your valuable lens from scratches, dirt, fingerprints, etc. Brand New, Lifetime Warranty

UV filter is one of the most important filters to own and it should be available for every lens. The filter blocks the invisible UV rays which can cause a loss of sharpness. The use of the filter is particularly recommended for work in the mountains, at the ocean, and in areas with very clear air. The contrasts are heightened, and distorting fog is avoided. The Opteka HD II Multi-Coated UV (0) Ultraviolet Haze Filter cuts haze for sharper black and white prints and corrects the blues and violets in color prints. The filter glass is colorless, and hence no increase in the exposure time is required. Multi-coating can prevent light reflection, ghost light, internal reflection etc, making image clearer and sharper. It can dramatically improve image quality. This is specially important in digital cameras. Since the image sensors CCD or CMOS are highly susceptible to reflections, this stray light can ruin your photographs. Multi-coated glass benefit substantially reduced light reflections, resulting clearer image with greater contrast. This type of filter is also eminently suitable as protection for the front lens, and because of its color-neutral properties it can remain on the camera lens permanently. A scratched front lens element can not be repaired; and replacement is costly. Exchanging a damaged UV filter for a new one is more economical than the purchase of a new lens. High-index / low-dispersion optical glass with HD IITechnology Multi-Coated and heat treated glass to eliminate distortion Pictures gain brilliance and disturbing blue casts are avoided Designed to maximize day and night shots by providing maximum light transmission Penetrates haze, adds warmth, and protects your valuable lens from scratches, dirt, fingerprints, etc. Brand New, Lifetime Warranty

UV filter is one of the most important filters to own and it should be available for every lens. The filter blocks the invisible UV rays which can cause a loss of sharpness. The use of the filter is particularly recommended for work in the mountains, at the ocean, and in areas with very clear air. The contrasts are heightened, and distorting fog is avoided. The Opteka HD II Multi-Coated UV (0) Ultraviolet Haze Filter cuts haze for sharper black and white prints and corrects the blues and violets in color prints. The filter glass is colorless, and hence no increase in the exposure time is required. Multi-coating can prevent light reflection, ghost light, internal reflection etc, making image clearer and sharper. It can dramatically improve image quality. This is specially important in digital cameras. Since the image sensors CCD or CMOS are highly susceptible to reflections, this stray light can ruin your photographs. Multi-coated glass benefit substantially reduced light reflections, resulting clearer image with greater contrast. This type of filter is also eminently suitable as protection for the front lens, and because of its color-neutral properties it can remain on the camera lens permanently. A scratched front lens element can not be repaired; and replacement is costly. Exchanging a damaged UV filter for a new one is more economical than the purchase of a new lens. High-index / low-dispersion optical glass with HD IITechnology Multi-Coated and heat treated glass to eliminate distortion Pictures gain brilliance and disturbing blue casts are avoided Designed to maximize day and night shots by providing maximum light transmission Penetrates haze, adds warmth, and protects your valuable lens from scratches, dirt, fingerprints, etc. Brand New, Lifetime Warranty

UV filter is one of the most important filters to own and it should be available for every lens. The filter blocks the invisible UV rays which can cause a loss of sharpness. The use of the filter is particularly recommended for work in the mountains, at the ocean, and in areas with very clear air. The contrasts are heightened, and distorting fog is avoided. The Opteka HD II Multi-Coated UV (0) Ultraviolet Haze Filter cuts haze for sharper black and white prints and corrects the blues and violets in color prints. The filter glass is colorless, and hence no increase in the exposure time is required. Multi-coating can prevent light reflection, ghost light, internal reflection etc, making image clearer and sharper. It can dramatically improve image quality. This is specially important in digital cameras. Since the image sensors CCD or CMOS are highly susceptible to reflections, this stray light can ruin your photographs. Multi-coated glass benefit substantially reduced light reflections, resulting clearer image with greater contrast. This type of filter is also eminently suitable as protection for the front lens, and because of its color-neutral properties it can remain on the camera lens permanently. A scratched front lens element can not be repaired; and replacement is costly. Exchanging a damaged UV filter for a new one is more economical than the purchase of a new lens. High-index / low-dispersion optical glass with HD IITechnology Multi-Coated and heat treated glass to eliminate distortion Pictures gain brilliance and disturbing blue casts are avoided Designed to maximize day and night shots by providing maximum light transmission Penetrates haze, adds warmth, and protects your valuable lens from scratches, dirt, fingerprints, etc. Brand New, Lifetime Warranty

UV filter is one of the most important filters to own and it should be available for every lens. The filter blocks the invisible UV rays which can cause a loss of sharpness. The use of the filter is particularly recommended for work in the mountains, at the ocean, and in areas with very clear air. The contrasts are heightened, and distorting fog is avoided. The Opteka HD II Multi-Coated UV (0) Ultraviolet Haze Filter cuts haze for sharper black and white prints and corrects the blues and violets in color prints. The filter glass is colorless, and hence no increase in the exposure time is required. Multi-coating can prevent light reflection, ghost light, internal reflection etc, making image clearer and sharper. It can dramatically improve image quality. This is specially important in digital cameras. Since the image sensors CCD or CMOS are highly susceptible to reflections, this stray light can ruin your photographs. Multi-coated glass benefit substantially reduced light reflections, resulting clearer image with greater contrast. This type of filter is also eminently suitable as protection for the front lens, and because of its color-neutral properties it can remain on the camera lens permanently. A scratched front lens element can not be repaired; and replacement is costly. Exchanging a damaged UV filter for a new one is more economical than the purchase of a new lens. High-index / low-dispersion optical glass with HD IITechnology Multi-Coated and heat treated glass to eliminate distortion Pictures gain brilliance and disturbing blue casts are avoided Designed to maximize day and night shots by providing maximum light transmission Penetrates haze, adds warmth, and protects your valuable lens from scratches, dirt, fingerprints, etc. Brand New, Lifetime Warranty

* Basic Protection Filter * Helps Minimize Bluish Cast * Protects Front Lens Element * Black Aluminum Filter Ring

* Basic Protection Filter * Helps Minimize Bluish Cast * Protects Front Lens Element * Black Aluminum Filter Ring

* Basic Protection Filter * Helps Minimize Bluish Cast * Protects Front Lens Element * Black Aluminum Filter Ring

* Basic Protection Filter * Helps Minimize Bluish Cast * Protects Front Lens Element * Black Aluminum Filter Ring

* Basic Protection Filter * Helps Minimize Bluish Cast * Protects Front Lens Element * Black Aluminum Filter Ring

" The Opteka Variable Neutral Density filter is unique in the fact that it allows you to use just one filter to generate 2-8 stops of neutral density depending on how it is rotated. Neutral Density filters have several uses and offer the possibility to achieve otherwise unachievable results. They enable the shooter to adjust exposure without affecting color balance. ND filters appear gray and reduce the amount of light reaching the film. Determining which neutral density filter yields ideal results for any given lighting situation takes knowledge, experience and a collection of such filters. Speaking generally, the 2-stop value (ND 0.6) effectively compensates average situations. - Enables slow shutter speeds to be used, especially with high speed films, to record movement in subjects such as waterfalls, clouds, or cars. - Decreases depth of field by allowing wider apertures to be used, which helps separate subjects from their background. - Decreases the effective ISO of high speed film (above ISO 400) and allow it to be used outdoors in bright situations. - Allows cine and video cameras (which have fixed shutter speeds) to film subjects such as snow, sand or other bright scenes which could cause overexposure. "

" The Opteka Variable Neutral Density filter is unique in the fact that it allows you to use just one filter to generate 2-8 stops of neutral density depending on how it is rotated. Neutral Density filters have several uses and offer the possibility to achieve otherwise unachievable results. They enable the shooter to adjust exposure without affecting color balance. ND filters appear gray and reduce the amount of light reaching the film. Determining which neutral density filter yields ideal results for any given lighting situation takes knowledge, experience and a collection of such filters. Speaking generally, the 2-stop value (ND 0.6) effectively compensates average situations. - Enables slow shutter speeds to be used, especially with high speed films, to record movement in subjects such as waterfalls, clouds, or cars. - Decreases depth of field by allowing wider apertures to be used, which helps separate subjects from their background. - Decreases the effective ISO of high speed film (above ISO 400) and allow it to be used outdoors in bright situations. - Allows cine and video cameras (which have fixed shutter speeds) to film subjects such as snow, sand or other bright scenes which could cause overexposure. "

" The Opteka Variable Neutral Density filter is unique in the fact that it allows you to use just one filter to generate 2-8 stops of neutral density depending on how it is rotated. Neutral Density filters have several uses and offer the possibility to achieve otherwise unachievable results. They enable the shooter to adjust exposure without affecting color balance. ND filters appear gray and reduce the amount of light reaching the film. Determining which neutral density filter yields ideal results for any given lighting situation takes knowledge, experience and a collection of such filters. Speaking generally, the 2-stop value (ND 0.6) effectively compensates average situations. - Enables slow shutter speeds to be used, especially with high speed films, to record movement in subjects such as waterfalls, clouds, or cars. - Decreases depth of field by allowing wider apertures to be used, which helps separate subjects from their background. - Decreases the effective ISO of high speed film (above ISO 400) and allow it to be used outdoors in bright situations. - Allows cine and video cameras (which have fixed shutter speeds) to film subjects such as snow, sand or other bright scenes which could cause overexposure. "