Do ND filters deteriorate over time?

Yatlapball · 9th November 2007

Sorry if the question sounds a little odd. I recently dug out my Hoya NDX8 from hibernating in the drycabinet and noticed that it gave a very strange green cast, something which I did not notice when I used it in the past. What gives? Did I just remember wrongly, or has anyone else faced a similar problem. ND filters ought to be well... as its name implies neutral no?

it kind of reminds me of lousy solar films that people fit on cars and it slowly changes colour over the years as it is exposed to the sun.

Denosha · 9th November 2007

Hoya ND filters DO have a green cast. I remember hearing that only the expensive NDs like those from Lee and Singh Ray are truly neutral. Dunno true or not. My Cokin NDs seem to have a magenta cast. Zzz..

Yatlapball · 9th November 2007

Ok thanks

I must have remembered wrongly then. Or did not notice it because I got it very early on when I just started out in photography (which is not very long. heh. 1+ year), and never really used it since then.

Guess I'd just custom an action in PS to correct the colour cast for all my shots with the ND8 fitted.

9th November 2007	#1
Yatlapball Senior Member Join Date: May 2006 Location: In God's Top Ten Posts: 2,249	Do ND filters deteriorate over time? Sorry if the question sounds a little odd. I recently dug out my Hoya NDX8 from hibernating in the drycabinet and noticed that it gave a very strange green cast, something which I did not notice when I used it in the past. What gives? Did I just remember wrongly, or has anyone else faced a similar problem. ND filters ought to be well... as its name implies neutral no? it kind of reminds me of lousy solar films that people fit on cars and it slowly changes colour over the years as it is exposed to the sun. __________________ my PBase(new)

9th November 2007	#2
Denosha Member Join Date: Dec 2003 Location: Bukit Timah Posts: 1,298	Re: Do ND filters deteriorate over time? Hoya ND filters DO have a green cast. I remember hearing that only the expensive NDs like those from Lee and Singh Ray are truly neutral. Dunno true or not. My Cokin NDs seem to have a magenta cast. Zzz.. __________________ My Photo blog \| Photo gallery \| My music profile

9th November 2007	#3
Yatlapball Senior Member Join Date: May 2006 Location: In God's Top Ten Posts: 2,249	Re: Do ND filters deteriorate over time? Ok thanks I must have remembered wrongly then. Or did not notice it because I got it very early on when I just started out in photography (which is not very long. heh. 1+ year), and never really used it since then. Guess I'd just custom an action in PS to correct the colour cast for all my shots with the ND8 fitted. __________________ my PBase(new)