Re: Possible septum material

[Joel Alpers <joel.alpers@xxxxxxxxxxx>]

Greg Erker wrote:
> 
> >Sounds interesting. One caveat is that things are not always as opaque
> >as they seem  ;)
> >
> >A friend made a replacement dark slide for me (4x5 camera) out of
> >a white plastic sheet (styrene? The stuff you can get at hobby stores
> >in various thicknesses). He painted both sides flat black. We found
> >that a sheet of film put in that holder fogged badly, even though
> >you couldn't see a hint of light through it.
> >
> >So testing is in order...
> 
>   If you are only using it to prevent stray
> light from the right lens striking the left
> film chip (and vice versa) then it doesn't
> have to be perfect. Just 4 or 5 stops down
> from the scene light striking the film chips.
> 
>   Now....if you are going to use it for your
> whole bellows, then I'll agree that testin
> is in order.

Excellent point.  Are you thinking of getting some? 

Joel.