The above Ad will no longer appear after you Sign Up for Free!

neutral density filter

Discussion in 'Wiki' started by NickJones, Apr 13, 2009.

  1. NickJones

    NickJones Active Member

    Messages:
    950
    Likes Received:
    59
    Location:
    Somewhere far far away, Vic, Aus
    A gray filter that reduces all wavelengths of colors equally, achieving the effect of decreasing the intensity of the light source without changing its color temperature. Often used on gaseous discharge sources that can't be electronically dimmed.

    One manufacturer's offerings, from http://www.gamonline.com/catalog/cinefilters/app.php :
    All four gel manufacturers, Rosco, LEE, GAM, and Apollo offer various intensities. http://www.leefilters.com/lighting/t...filter=control

    0.15 ND reduces light 1/2 f-stop, 75% transmission
    0.3 ND reduces light 1 f-stop, 50% transmission
    0.6 ND reduces light 2 f-stops, 25% transmission
    0.9 ND reduces light 3 f-stops, 12% transmission
    1.2 ND reduces light 4 f-stops, 6% transmission
     
    Last edited by a moderator: Apr 13, 2009

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice