P3D Re: colour tempertures

[Peter Homer <P.J.Homer@xxxxxxxxxxxxx>]

Mike Canter wrote in reply to my post

>In digest 3301, P.J. Homer writes, in part:
>
><<  3,300K at 12 volts but can be
> over-run to about 14 volts to give 3,600K. >>
>
>Hmm, how about dropping the voltage a bit to give 3200K?

 Actualy that was the manafacturers original recomendation too, Running at
11.5 volts to give 3200K for 3200K corrrected films. Which is where I got
the idea that there must at least have been a film at one time intended for
this colour temperature. Presumably originaly for photopearl bulbs but
suitable for halogens of the same temp although they seem to be a little
higher 3,300K when run at the recomended voltage. But even at the time I
had not come across any 3200K film so I used 3400K photoflood film and ran
at 12 volts to give 3,300K or even overan a bit to give 3400K. Nowadays as
Mike Canter wrote even 3400K film is hard to find so I use daylight film
and compensating filters.      P.J.Homer



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