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Photo Forum / Film Photography / Darkroom / November 2004Red filter included with contrast filters...
I bought a used darkroom from a friend and it came with VC filters... along with the filters (in the same box but not cased with the other filters) there is also a red filter (very RED red) same construction but has it's own case - what's this for? > I bought a used darkroom from a friend and it came with VC filters... > along with the filters (in the same box but not cased with the other > filters) there is also a red filter (very RED red) same construction > but has it's own case - what's this for? Focusing on the paper.  SignatureJoe Makowiec http://makowiec.org/ Email: http://makowiec.org/contact/?Joe > > I bought a used darkroom from a friend and it came with VC filters... > > along with the filters (in the same box but not cased with the other > > filters) there is also a red filter (very RED red) same construction > > but has it's own case - what's this for? > > Focusing on the paper. and positioning the paper when not using an easel. SignatureClaudio Bonavolta http://www.bonavolta.ch > > > I bought a used darkroom from a friend and it came with VC filters... > > > along with the filters (in the same box but not cased with the other [quoted text clipped - 4 lines] > > and positioning the paper when not using an easel. and positioning a vignette or burning card, or dodging tool. >I bought a used darkroom from a friend and it came with VC filters... > along with the filters (in the same box but not cased with the other > filters) there is also a red filter (very RED red) same construction > but has it's own case - what's this for? Both the other answers are correct, - sort of. Don't try to focus with the filter in place as the image will be to dark and your eyes are not suited to focusing with a red image. The purpose was to allow you to project the image on the easel with your B&W paper in place and finalize the composition on the paper and then flip it out to begin your exposure, and then back in (or turn the lamp off) to end the exposure. In over 27 years of darkroom experience, I think I've used it twice, and that was when I was working difficult negatives and I flipped it in and out to make sure I was positioning my mask properly. However, just like a safelight, you should test it (if you're going to use it) with the paper of your choice to assure it won't cause fogging. Jim I thought B&W VC paper was sensitive to red light - and that's why there are the amber filters for safe lights. Must be just a certain spectrum of red? > I thought B&W VC paper was sensitive to red light - and that's why > there are the amber filters for safe lights. Must be just a certain > spectrum of red? It can look red but still emit in the sensitive part of the spectrum for your paper. Like presumed inactinic lights, it's a good habit to check it from time to time. SignatureClaudio Bonavolta http://www.bonavolta.ch VC paper is sensitive to blue and green light, insensitive to red. Panchromatic papers like Panalure and all color paper are sensitive to red green and blue light but there is a gap in sensitivity where the dark amber "safelight" resides. Probably more correct to say less "un"-safe rather than truly safe. Signaturedarkroommike ---------- > I thought B&W VC paper was sensitive to red light - and that's why > there are the amber filters for safe lights. Must be just a certain > spectrum of red? >I thought B&W VC paper was sensitive to red light - and that's why > there are the amber filters for safe lights. Must be just a certain > spectrum of red? Mike (Darkroom Mike) already explained the sensitivity issue. However, like I said my the last sentence in the above post, you should always test, just like a safelight... |
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