They do not affect a colour balance on a picture and bring longer exposure times to obtain interesting shots of moving subjects on photographed scenes.
The filters are most commonly used to:
Prolong shutter speed to capture such subjects as: waterfalls, brooks, moving vehicles.
Obtain larger aperture opening with the same exposure time to highlight a person or a subject and get a blurred background effect.
Shoot in intensive daylight with ISO sensitivity above 400.
Ensure stable shutter speed to record scenes with a very bright background, such as snow or sand, which could cause overexposure of photographed or recorded scene.
HOYA's three premium IRND filters HD Mk II IRND 8, 64 and 1000 as a convenient all-around kit with carry pouch. Features IR-cut ACCU-ND technology, water- and oil repellent coating and low-profile frame. The HOYA HD Mk II IRND FILTER KIT includes...
ND HMC series filters find many uses in photography and in film. They allow you to extend the exposure time when it is not possible to stop more strongly or stop the ISO sensitivity. On a sunny day, they allow you to use small aperture values...
The ACCU-ND technology in the HOYA PRO ND filters yields a truly neutral colour balance that will not add any noticeable colour-cast to your images. The HOYA PRO ND series is aimed at the still photography and HDSLR video markets. The Metallic...
Hoya HMC NDx400 reduces light values by 9 stops to less than 1/500th of its original intensity and makes your exposition time 400 times longer than without the filter. It can also be used to achieve super slow shutter speeds in daylight to render...