[pure-silver] Re: safe light
- From: Georges Giralt <georges.giralt@xxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Mon, 09 Jun 2008 15:44:47 +0200
Hi !
Orange light is "a coumpound color" so it can/may fall into the paper's
sensibility zone. Often, red fall outside this sensibility zone. The problem is
that our eyes are far less sensitive to red than to orange, so for comfort we
often choose orange over red.
But orange safelight will fog most B&W multigrade papers. the Forte, Foma and
maybe Efke (I can't tell for sure, as I do not use them, but if they ask for
red...)
If you still want to use orange and keep your contrast correct and the paper's
margin white, the light level will be so dimm that you'd better turn the
safelight off and save the electricity....
Just my 2 cents.
Selon Bogdan Karasek <bkarasek@xxxxxxxxxxxx>:
> Hi,
>
> I have been curious about this myself. I presently use a Kodak OC
> filter on my Kodak safelights. Does using a red light mean using an OA
> filter? Or do they literally mean a red safe light bulb?
> There are red safelight bulbs made by some company....
>
> Cheers,
> Bogdan
>
>
> Eric Nelson wrote:
>
> >If it asks specifically for a red safelight, then it's
> >a pretty safe bet that's what you'll need.
> >
> >Forte Polywarmtone Elegance was one that needed a red
> >safelight and it was specified by Forte (at the time),
> >but I'm unfamiliar with the Fotokemika Varycon you
> >speak of.
> >
> >You can always do a safelight test once you get the
> >paper, but I'd have a red filter at the ready in case
> >it's needed.
> >
> >They're useful for orthochromatic graphic arts films a
> >well. =)
> >Eric
> >
> >--- ERoustom <eroustom@xxxxxxxxxxx> wrote:
> >
> >
> >
> >>Here's an ignorant beginner question:
> >>If my safe light has been working with older graded
> >>Agfa papers, and
> >>all sorts of VC papers, will it work with papers
> >>like Fotokemika
> >>Varycon that specifically ask for a RED light?
> >>Even though to my eyes it's a an orange light? Do I
> >>really need to
> >>spend the money on a red light? Or are there
> >>economical options?
> >>
> >>E.
> >>
> >>
> >>
>
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> >>
> >
> >
> >
> >
> >
>
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> --
> ________________________________________________________________
> Bogdan Karasek
> Montréal, Québec bogdan(at)bogdanphoto.com
> Canada www.bogdanphoto.com
>
> "I bear witness"
> ________________________________________________________________
>
>
>
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