Re: HIE in small cameras

[Cameron Shaw <cameron@xxxxxxxxxxxxx>]

> > Some time ago there was a thread discussing the use of HIE in
> > small point-and-shoot cameras (indoor at parties, receptions, etc.). I
> > believe someone mentioned placing an 87 wratten filter over the built-in
> > flash and using DX-coded labels with cameras that don't allow manual
> > setting of the film speed.
> 
> If you use a #87 gelatine: I don't think it will stand up to the
> heat generated by the flash. Note that I say 'generated', not
> 'emitted'....apart from the heat that any flash emits, using an IR
> filter means that the entire visible spectrum is absorbed by the
> filter, and it can only do so by transforming it into heat.
> 
> Even my 0.4mm thick polyester #87C can't stand this abuse, and fades.
> The 0.1mm #87 is fine though, it will buckle slightly under extreme heat
> (halogen torch light), but won't fade.
> 
> --
> Bye,
> 
> Willem-Jan Markerink
 
Yes, I've tried this and the #87 works fine, however to stop it melting
just space it about 20 mm 
from the flash head front. It's tempting just to tape it straight on to
the front, but as you have 
found it will buckle, the space helps the heat to dissipate into the
surrounding air.
Cameron
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