[Leica] Ir filter and film cameras, take it off

[msadat at gmail.com (mehrdad)]

very good explanation len,

frank,  lens was zeiss 21, filter was bw and you would only see it @ the 
corners

On 3/18/07, Leonard Taupier <len-1@comcast.net> wrote:
> Frank,
>
> It has nothing to do with film or the brand of filter. The problem is
> the color response of the filter at extreme angles. If you take an IR/
> UV filter in your hand. Look through it straight on. The color
> through the filter is quite normal. Then slowly rotate the filter so
> you are looking through it at an angle. The color through the filter
> will turn cyan. The sharper the angle, the more cyan.
>
> Len
>
>
> On Mar 18, 2007, at 7:02 PM, Frank Filippone wrote:
>
> > Can you be more specific?  What particular brand of which filter #?
> >
> > According to the filter specs. Most film should not be
> > affected..... notice the words ... most and should......
> >
> > I will compare specs of film spectral density and filter pass
> > band......
> >
> > Fancy words for taking another look at how the 2 should work
> > together......
> >
> > Frank Filippone
> > red735i@earthlink.net
> >
> >
> >
> > a word of caution to remove the ir filter when shooting color
> > film/silde. just got a roll back and i have cyan colors on the
> > corners. shot with zeiss 21/ir filter, fuji provia and m6.
> >
> > --
> >   -------------------------------------
> >   regards, mehrdad
> >
> > _______________________________________________
> > Leica Users Group.
> > See http://leica-users.org/mailman/listinfo/lug for more information
> >
> >
> >
> > _______________________________________________
> > Leica Users Group.
> > See http://leica-users.org/mailman/listinfo/lug for more information
>
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>


-- 
  -------------------------------------
  regards, mehrdad