Newton rings are caused by small variations in the distance between two
reflective surfaces. If the surfaces are perfectly parallel, there will be
no Newton rings; if the angle between the surfaces is sufficiently great,
there will be no visible Newton rings. Only when the surfaces are almost
para
One would be to replace the glass with anti-newtonian rings glass if it is
not already that. Another would be to use an anti-newtonian ring powder on
the glass between the negative and the glass. I suppose you could use the
two in cnjunction with each other as well as separately.
The powder has
Is the glass replaceable? Anti-Newton ring glass does exist. Darkroom
enthusiasts often use it when they sandwich their negatives between glass in
enlarger negative carriers.
Brian
--
respond to [EMAIL PROTECTED]
- Original Message
At 5:06 PM -0400 9/27/02, Brian wrote:
>Is the glass replaceable? Anti-Newton ring glass does exist. Darkroom
>enthusiasts often use it when they sandwich their negatives between glass in
>enlarger negative carriers.
>
>Brian
>--
>respond
The cause of Newton Rings is when a space is created between two finely
polished or glossy surfaces that is a very small space equal to or a
small multiple of white light wavelengths, which then cause interference
colors via the reflection between the surfaces. The best way to avoid
them completel
>One way that this has been dealt with is by using a glass which has a
>very fine etched surface which creates very small "contact points"
>between the two surfaces. Another method is to use a very fine powder
>(talc is sometimes used) to again create this "airpace" with minimal
>contact points.
remedy digitally or otherwise once they exist.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Brian
Sent: Saturday, September 28, 2002 7:07 AM
To: [EMAIL PROTECTED]
Subject: [filmscanners] Re: Avoiding Newton rings
>One way that this has been dealt with
Even anti-Newton glass degrades the image. It's quite obvious with an
anti-Newton glass slide mount.
--
Ciao, Paul D. DeRocco
Paulmailto:[EMAIL PROTECTED]
> From: Brian
>
> I have read about the fine powder technique before. But wouldn't this
> degrade the scanned
-Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Brian
> Sent: Saturday, September 28, 2002 11:35 AM
> To: [EMAIL PROTECTED]
> Subject: [filmscanners] Re: Avoiding Newton rings
>
>
> I see. Any
> possibility the powder would muck up t
Paul writes:
> Even anti-Newton glass degrades the image. It's
> quite obvious with an anti-Newton glass slide mount.
It should not make a difference if it is only on the side of the film
opposite the scan head. If it comes between the film and scan head, that
might be a problem (doesn't seem t
;Arthur Entlich" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Saturday, September 28, 2002 03:10
Subject: [filmscanners] Re: Avoiding Newton rings
The cause of Newton Rings is when a space is created between two finely
polished or glossy surfaces that is a very small space equal
"Anthony Atkielski" <[EMAIL PROTECTED]> wrote:
>>
I think I see part of the problem: Provia is shiny on both sides--no
visible emulsion on either side. Apparently the emulsion side is coated.
Maybe that's why the rings turn up. I wonder why Fuji does that.
<<
The Provia here
you could probably use the drum mounting fluid successfully
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Arthur Entlich
> Sent: Sunday, September 29, 2002 5:36 PM
> To: [EMAIL PROTECTED]
> Subject: [filmscanners] Re: Avo
> I'm unfamiliar with anti-newton ring plastic. How thick is it?
> Is it
> flexible? How do you avoid scratches and static?
>
> Art
>
Correct - I'm scanning my 8x10's at 1200 or 1600 ppi
the anti newton sheets are a bit over 8x10 and are like a textured
sheet of mylar. They come in packs of on
I found it using the following link, which might be easier to access.
Art
http://www.mediastreet.com/cgi-bin/tame/mediastreet/ultra.tam
[EMAIL PROTECTED] wrote:
> Here it is:
>
>
> http://www.mediastreet.com/cgi-bin/tame/mediastreet/ultra.tam?
> anchor=#top
>
> (may need to cut and paste)
>
Laurie writes:
> That may be an option; but I suspect that Anthony
> would have the same objection to a fluid or oil
> as he has to a powder.
Absolutely. I'm paranoid enough about dust getting into the scanner (I'm
not sure if I can clean it myself, as I can with the LS-2000). Fluids and
powde
Really? Have you scanned the same slide in an anti-Newton glass mount and in
a conventional mount and compared them? I can easily see the difference on
my LS-2000, which is only 2700dpi.
--
Ciao, Paul D. DeRocco
Paulmailto:[EMAIL PROTECTED]
> From: Anthony Atkielsk
Paul writes:
> Really? Have you scanned the same slide in an
> anti-Newton glass mount and in conventional mount
> and compared them?
I've never scanned slides in glass mounts at all. For 35mm, either I scan
them mounted without glass (usually plastic mounts), or I scan them in
strips without g
18 matches
Mail list logo
