Hair-spray as anti-newton ring product

[sperera]

i was just told an old-timer that did this for a living that he used hair-spray as anti-newton ring product!!!! any comments?

 

[pellicle]

test it?

spray 1/2 the glass, look for colour and level changes either side of the boundary

 

[sperera]

they say to spray in the air and pass the negs in the 'mist'

I tried it....NO NEWTON RINGS but i must have sprayed too much as there were dots on the negs....then i tried with another and must not have sprayed enough as newton rings all over.....mmmmmmmmmm i dont think i can trust this method with something with so many variables

 

[pellicle]

they say to spray in the air and pass the negs in the 'mist'

of course my first reaction that that was

Ahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

I guess these are old guys makin seps from 8x10 chromes for 5x7 magazine layins

 

[ianh]

IIRC, cornstarch in alcohol put into a spritzer does the trick - a very light misting on the neg, allow to dry. I'll try to find the 'recipe' - it's around here somewhere amongst the piles of books, notes,etc.,

 

[Rudeofus]

Hair spray? Starch??? It's funny how people discuss the durability of film material and then spray random stuff on their negs just to get one good scan .... I mean if I had to dunk my slides in some fluid I'd at least wish it didn't leave any residue :confused:

 

[sperera]

surely there's some fun in this investigation.....testing done on crap fot negs so its ok

Hair spray? Starch??? It's funny how people discuss the durability of film material and then spray random stuff on their negs just to get one good scan .... I mean if I had to dunk my slides in some fluid I'd at least wish it didn't leave any residue :confused:

 

[BabyBoomer]

Hair spray? Starch??? It's funny how people discuss the durability of film material and then spray random stuff on their negs just to get one good scan .... I mean if I had to dunk my slides in some fluid I'd at least wish it didn't leave any residue :confused:

The problem with ALL these "receipes" is they all try to skip the drums....without an advanced expert drummer, drumming on a totally organic drum (wood and animal hide) these spell, potions and charms just won't work. No Way! Hire a drummer!!

 

[Bob Carnie]

I did us a powder for this exact reason when mounting images to vacumn glass.
Never heard of using Hair Spray.

The trick was to have the minimal amount of powder that scared off the newton rings but also did not show.
looking with a loop would tell if there was too much powder and the cursed rings would tell you not enough.

 

[ianh]

from the Kodak book "Bigger and Better Enlarging"...
Make a thin 'soup' of talc or magnesium carbonate in Kodak film cleaner. The particles will be held in suspension by the liquid. Place negative to be printed on a flat, clean surface with the emulsion side down. Dip a tuft of cotton in the suspension and rub it lightly over the back side of the negative. The liquid evaporates in a few seconds leaving a thin, even coating of the talc particles. Use a camel's hair bursh to even out any streaks or concentration of the particles....Talc particles are small and will not appear in prints made with diffusion enlargers."

Can't say that I've tried it myself. I have a small stash of anti-offset powder (from my prepress days) that I sometimes use - a tiny 'puff' over the neg is virtually invisible, but cuts the newton rings. Less is best

 

[imazursky]

I wouldn't use hair spray. Way back when i used to use it lightly coated on a UV filter to soften an image.
More recently, well 7 years ago i used it on a UV filter to reduce moire on a leaf cantare back while shooting denim.
The other issue is that its sticky and you don't know if any of the chemicals in it will permanently damage film.
Since it softens an image while shooting, i think it would make a very soft scan.

Corn starch or similar powders have been used for years in drum scanning to make anti newton spray.
However, it severely limits your enlargements to maybe 250-400%. Its also a pain in the you know what to cleanup.
It can scratch your drum and your film when you clean it off if your are not careful.
I would use the dip method to clean film and then wipe it. The drum would need a few highly saturated scanner wipes.

Btw, Anti offset powder is used on press in the delivery section to keep ink from offsetting to the bottom of the next sheet on top.
Its a little courser compared to fine corn starch or other powders.

 

[sperera]

thanks for all the posts......actually, one thing that has helped dramatically in the last few scan sessions has been so simple its embarrassing: I'm mounting the film over the scanner with normal pressure....ie im laying it over and taping up with no force as opposed to me steam-rollering it over the drum as hard as possible to make it as tight as possible......

from the Kodak book "Bigger and Better Enlarging"...
Make a thin 'soup' of talc or magnesium carbonate in Kodak film cleaner. The particles will be held in suspension by the liquid. Place negative to be printed on a flat, clean surface with the emulsion side down. Dip a tuft of cotton in the suspension and rub it lightly over the back side of the negative. The liquid evaporates in a few seconds leaving a thin, even coating of the talc particles. Use a camel's hair bursh to even out any streaks or concentration of the particles....Talc particles are small and will not appear in prints made with diffusion enlargers."

Can't say that I've tried it myself. I have a small stash of anti-offset powder (from my prepress days) that I sometimes use - a tiny 'puff' over the neg is virtually invisible, but cuts the newton rings. Less is best