Re: IR fogging

["David Lee" <koganlee@xxxxxxxxxxxxx>]

> >
> > > I have shot numerous sheets of HSI with my Leonardo pinhole camera.
> > Plywood
> > > may not be the best material to use with infrared, but pine
> > seems to have
> > > worked well enough for me.
> > >
> > > george
> > >
> > > ---
> > How thick is the wood?
>
> The Leonardo uses 1/2" thick wood.  Pine isn't exactly one of the better
> choices when shooting IR pinhole - actually, it's one of the worst - but I
> believe that the thickness helps.
>
> george
>
I suspect that the thickness is the important factor here, although the type
of wood may be a factor, too. As I mentioned in my previous post, the
mahogany plywood that I used is only 3/16"thick (and of course the mahogany
part is only 1/3 of it.) I wouldn't think that IR would get through 1/2"
plywood of any sort (although I didn't expect it to get through 3/16"
either.) One of the reasons I made my pair of wooden 4x5 cameras was to be
light (since I am carrying 2 of them). A single camera of this sort weighs
no more than a Rolleicord, but with 1/2" thick wood they would have been
much heavier.

David Lee

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