[LargeFormat] Re: Center filters vs Gray grads vs. Neutral density filters for 4x5

[Guy Glorieux]

Thanks all for the information. What I'm looking for is a filter that
will reduce the severe vignetting that I've experienced with the giant
pinhole image.  This kind of filter seems to be the way to go.
Best wishes,
Guy
----- Original Message -----
From: "Dave Mueller" <dmueller@bellatlantic.net>
To: <largeformat@f32.net>
Sent: Friday, July 19, 2002 2:50 PM
Subject: Re: [LargeFormat] Re: Center filters vs Gray grads vs. Neutral
density filters for 4x5


> It's the COS^4 law.
>
> Dave
>
> Frank Filippone wrote:
>
> > My memory is the the lenses drop off at the power of the third
law.... or
> > maybe square.. anyway, that is the opposite of the filter.....
> >
> > Frank Filippone
> > red735i@earthlink.net
> >
> > _______________________________________________
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>
>
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