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safelight -- 'Lamp Dip' Rosco's Colorine
November 7, 2005, from Lloyd Erlick,,
I've been poking about making my darkroom functional again, and the topic of safelights has intruded upon my mind. Here is a web page I found that might be of interest: (I haven't tried this, so I can't say if one of the red lamp dips is actually safe for photo materials. Maybe someone on the darkroom list is familiar with this product.) .... ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~ http://wolfstone.halloweenhost.com/T...t.html#LampDip Lamp Dip Lamp dip is a paint-like liquid specially designed to be applied to a lamp by painting on the glass envelope, or dipping the bulb into the liquid. This leaves a film on the lamp that colors the light. Lamp dip is designed to work in hot environments like the surface of a lamp, but it has limitations, and will burn off extremely hot lamps. Check the manufacturer's specifications to find the limitations of the product. There are probably several outfits that make stuff like this, but the most famous is Rosco's Colorine, which was the first product that the company made, back in 1910. Colors are described as "brilliant and long lasting", but "not for permanent installations." Another reference suggests Colorine for use on incandescent lamps of 40W or less. part number color Roscolux filter equivalent 07601 Cardinal Red 26 07602 Ruby Red 27 07603 Magenta 49 .... Colorine is only available in pints. It costs a little over $14/pint as of January 2004. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ regards, --le ________________________________ Lloyd Erlick Portraits, Toronto. voice: 416-686-0326 email: net: www.heylloyd.com ________________________________ -- |
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safelight -- 'Lamp Dip' Rosco's Colorine
Colorine is only available in pints. It costs a little over $14/pint as of January 2004. How many bulbs do you intend to coat! -- http://www.petezilla.co.uk |
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safelight -- 'Lamp Dip' Rosco's Colorine
Just one.
A Lot!! |
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safelight -- 'Lamp Dip' Rosco's Colorine
Peter Chant wrote:
Colorine is only available in pints. It costs a little over $14/pint as of January 2004. How many bulbs do you intend to coat! If coating a 25w globe lamp would give you something like a Delta 1 safelight bulb, you would only need to coat one or two bulbs to start to save money. The Delta 1 bulbs must be coated with something similar to this, but I have no idea whether they have their own special coating or buy it from a third party. The curves for the Roscolux #27 filter would seem to indicate that it would be a reasonable substitute for a #1A filter. I would be very interested if someone were to test it and report their findings. Another idea for saving money on safelights is to use a few layers of rubylith as a safelight filter. If there were lighting gels which were known to be safe, they might be attractive also. The proper safelight filters from Kodak and Ilford have got rather expensive, though they do last a long time in domestic use. Peter. -- |
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safelight -- 'Lamp Dip' Rosco's Colorine
In article , Peter Irwin
wrote: The curves for the Roscolux #27 filter would seem to indicate that it would be a reasonable substitute for a #1A filter. I would be very interested if someone were to test it and report their findings. Your the perfect candidate :-) |
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safelight -- 'Lamp Dip' Rosco's Colorine
Gregory Blank wrote:
In article , Peter Irwin wrote: The curves for the Roscolux #27 filter would seem to indicate that it would be a reasonable substitute for a #1A filter. I would be very interested if someone were to test it and report their findings. Your the perfect candidate :-) I think I will try the experiment. I've been using an Ilford safelight and filter lately, but I'm always trying to convince people to start their own darkrooms and a source of cheap and effective safelights would be a good thing to know about. Having an extra safelight in a dark corner might be nice too. Peter. -- |
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safelight -- 'Lamp Dip' Rosco's Colorine
On Mon, 07 Nov 2005 18:41:36 +0000, Peter
Chant wrote: Colorine is only available in pints. It costs a little over $14/pint as of January 2004. How many bulbs do you intend to coat! November 8, 2005, from Lloyd Erlick, Well, I'm only looking for a cheap source of safelights. I'm reconstituting my darkroom after a little while off, and I checked the price of safelights in a local photo shop. Over fifty dollars. I want lights in a number of locations in my place. I don't want to pay fifty dollars for a safelight in every corner. So if I can dip a Christmas tree bulb and put it in a small, ordinary lamp, the whole thing is painless, or at least cheap. I suppose I'll get a pint and dip a lifetime supply of small bulbs. Someone mentioned Delta1 safelight bulbs. I tried those years ago (perhaps they have changed by now). I hated the damn things; Delta lost me as a customer forever. I found their safelight bulbs had extremely delicate filaments. I destroyed several bulbs by handling them too roughly before I realized what was happening. I do know how to handle delicate things, I have a camera and a lens or two. I work with wet sheets of paper. Other light bulbs have survived well with me, including plenty of ECA and ECT lamps burning away at really high temperature. So, the Delta bulb is not on my list. It's also wildly overpriced. Two or three would cost the same as a pint of dipping paint. I'd just like to coat a box full of small bulbs and have safelights for the rest of my life... regards, --le ________________________________ Lloyd Erlick Portraits, Toronto. voice: 416-686-0326 email: net: www.heylloyd.com ________________________________ -- |
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safelight -- 'Lamp Dip' Rosco's Colorine
On Mon, 7 Nov 2005 19:34:08 +0000 (UTC),
Peter Irwin wrote: The curves for the Roscolux #27 filter would seem to indicate that it would be a reasonable substitute for a #1A filter. I would be very interested if someone were to test it and report their findings. November 8, 2005, from Lloyd Erlick, Could you tell me where you found the curves? I looked all over the Rosco site but all I could find was the advertisement for a book of swatches that included spectral curves. There is a remark in one of the Rosco pdf documents to the effect that the R27 filter passes light of wavelength over 620 nanometers, and none below. thanks, --le ________________________________ Lloyd Erlick Portraits, Toronto. voice: 416-686-0326 email: net: www.heylloyd.com ________________________________ -- |
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safelight -- 'Lamp Dip' Rosco's Colorine
On Mon, 7 Nov 2005 22:45:53 +0000 (UTC),
Peter Irwin wrote: Having an extra safelight in a dark corner might be nice too. November 8, 2005, from Lloyd Erlick, That's what I'd like. Now that I'm an aged pea, my eyes would really like a little light where they're expected to see. Small safelight bulbs under my cabinets and in the far corners and down the passage to my print washer would be very nice. I'd also like a bit of light around my feet wherever I'd have to walk, and to help find things that get dropped. Christmas tree bulbs are all over the place right now, and soon they will be getting sold off cheap by the retailers. They don't have such a long lifespan, but if dipping them is cheap it should be OK. regards, --le ________________________________ Lloyd Erlick Portraits, Toronto. voice: 416-686-0326 email: net: www.heylloyd.com ________________________________ -- |
#10
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safelight -- 'Lamp Dip' Rosco's Colorine
On Tue, 08 Nov 2005 09:19:45 -0500, Lloyd Erlick Lloyd at @the-wire.
dot com wrote: On Mon, 7 Nov 2005 22:45:53 +0000 (UTC), Peter Irwin wrote: Having an extra safelight in a dark corner might be nice too. November 8, 2005, from Lloyd Erlick, That's what I'd like. Now that I'm an aged pea, my eyes would really like a little light where they're expected to see. Haven't tried them, but there are strings of xmas tree bulbs made from LEDs now. I'd bet the red ones are safe, and cheap...and so festive! Chris Ellinger Ann Arbor, MI USA |
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