|  Product Description
 
  
 The ACCU-ND technology in the Hoya PROND filters yields a truly neutral color 
balance that will not add any noticeable color-cast to your images. The Hoya 
PROND series is aimed at the still photography and HDSLR video markets. The 
series provides 9 filters from two stop to 10 stop light reduction. 
 The Metallic ACCU-ND coating on the PROND filters do not color shift as you move 
from one density to the next, a common problem with other series of neutral 
density filters. Now you can set your white balance once and have the same color 
balance even if you need to change filters due to changes in lighting, or for 
creative effect.
 
 The PROND filters use Hoyas exclusive clear optical glass that has a metallic 
ACCU-ND coating front and back to create the neutral density affect.
 
 Neutral density filters are designed to reduce the amount of light entering your 
camera lens and should not have any other effect on the image. Reducing the 
amount of light allows for the use of wider apertures or slower shutter speeds 
for creative and dramatic effect in bright lighting conditions.
 
 All Hoya PROND filters have a low-profile one piece aluminum frame. The thin 
frame keeps the glass secure and parallel to the sensor while allowing it to be 
used with super-wide angle lenses.
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