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#1
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4 by 5 Glass Carrier for 35mm Neg Newton Rings
I wanted to printed a 35mm to included the sprocket holes and film
information. I thought I'd us a surplus 4x5 glass Beseler carrier. It appears now that I'm getting Newton's rings on the prints. My question is: why did they bother making a glass carrier with non AN glass if it pretty much always leaves rings on the neg. Am I doing something wrong? Could I use Kami fluid to stick the neg down? Thx. |
#2
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4 by 5 Glass Carrier for 35mm Neg Newton Rings
In qzgJg.496523$IK3.399847@pd7tw1no, on 08/30/06
at 01:40 PM, "Alan Smithee" said: I wanted to printed a 35mm to included the sprocket holes and film information. I thought I'd us a surplus 4x5 glass Beseler carrier. It appears now that I'm getting Newton's rings on the prints. My question is: why did they bother making a glass carrier with non AN glass if it pretty much always leaves rings on the neg. Am I doing something wrong? Could I use Kami fluid to stick the neg down? Thx. Beseler supply [or did] a glass replacement kit for the 4 x 5 carrier of which one side had anti-Newton ring treatment. - ----------------------------------------------------------- les clark / edgewater, nj / usa ----------------------------------------------------------- |
#3
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4 by 5 Glass Carrier for 35mm Neg Newton Rings
Alan Smithee wrote:
I wanted to printed a 35mm to included the sprocket holes and film information. I thought I'd us a surplus 4x5 glass Beseler carrier. It appears now that I'm getting Newton's rings on the prints. My question is: why did they bother making a glass carrier with non AN glass if it pretty much always leaves rings on the neg. Am I doing something wrong? Could I use Kami fluid to stick the neg down? Thx. Most of the traditional usage of a glass carrier was to print smaller negatives but using a paper negative between the film and the top glass -- darkroommike |
#4
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4 by 5 Glass Carrier for 35mm Neg Newton Rings
"darkroommike" wrote:
Most of the traditional usage of a glass carrier was to print smaller negatives but using a paper negative between the film and the top glass Huh? I use the glass negative holder provided on the Focomat IIa. No paper negative. Ever. It's straightforward "holding the negative flat" technology. |
#5
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4 by 5 Glass Carrier for 35mm Neg Newton Rings
j wrote:
"darkroommike" wrote: Most of the traditional usage of a glass carrier was to print smaller negatives but using a paper negative between the film and the top glass Huh? I use the glass negative holder provided on the Focomat IIa. No paper negative. Ever. It's straightforward "holding the negative flat" technology. Sorry, not enough coffee, most of the time, when using 4x5 glass carriers, the practice was to use a paper mask between the negative and the upper glass to cut off the non-image light and eliminate fog. The mask also added just enough space between negative and glass to eliminate Newton Rings. -- darkroommike |
#6
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4 by 5 Glass Carrier for 35mm Neg Newton Rings
"darkroommike" wrote in message ... j wrote: "darkroommike" wrote: Most of the traditional usage of a glass carrier was to print smaller negatives but using a paper negative between the film and the top glass Huh? I use the glass negative holder provided on the Focomat IIa. No paper negative. Ever. It's straightforward "holding the negative flat" technology. Sorry, not enough coffee, most of the time, when using 4x5 glass carriers, the practice was to use a paper mask between the negative and the upper glass to cut off the non-image light and eliminate fog. The mask also added just enough space between negative and glass to eliminate Newton Rings. Paper mask? What's that? Wouldn't that cause other problems? |
#7
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4 by 5 Glass Carrier for 35mm Neg Newton Rings
"Alan Smithee" wrote
[35mm in 4x5 glass carrier] Paper mask? What's that? Traditionally a sheet of opaque paper, black on one side, red on the other with a 1/8" grid markings. You cut a hole of appropriate size with a razor blade and ruler. They were used in contact printing to give prints a border - back when drugstore 'prints' meant contact prints and not enlargements. Back then film for the P&S's of the day was large, 120 and up, and enlargements weren't really needed. Some of the old Kodak folders make negatives 3.75 x 5.5" (or something close) on 112 (?) film. You need to use a mask when using a larger format negative carrier - the light spill around the negative will fog/lower the contrast of any prints. Wouldn't that cause other problems? I don't know of any. The black paper from packets of paper or sheet film or a few strips of 120 backing paper taped together will make a workable mask. You don't have to worry much when cutting the hole, in the old days it was a pain getting the hole perfect so the print borders would straight and fuzz-free. If you are using a top-glass only carrier or a glasseless carrier 35mm is going to bow in a 6x6 or 4x5 carrier. Stop down. Two sheets of window glass hinged with duct tape make a very workable emergency glass carrier for enlargers that take a simple carrier such as Beseler and Omega. Sand the edges of the glass or have the glass shop smooth them or negatives can get scratched. To preserve sanity tape the mask to the inside of the top half of the carrier. -- Nicholas O. Lindan, Cleveland, Ohio Darkroom Automation http://www.nolindan.com/da/index.htm n o lindan at ix dot netcom dot com |
#8
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4 by 5 Glass Carrier for 35mm Neg Newton Rings
Ah I get it now. I was thinking "paper" in front of the negative...duh. So
basically you can cut a custom mask to print to the edge of the sprockets this way. I think I give it a try. |
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