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[filmscanners] Re: Burned-Out Highlights



Hi!

You can get it from:

www.hamrick.com/vsm.html

Some ideas:

Vuescan has a long exposure pass. It's useful, even if has it's own problem. 
Single pass multiple exposure reduces noise, but does not help anything else.

Vuescan has exposure control, and it may also be helpful. I have not really 
used negative film, but I has some recepies for scanning dark Velvia using 
Vuescan.

1) Use some kind of oversampling (tiff size reduction or single pass multiple 
exposure).

2) Increase exposure

3) Increase brightness

Advanced:

I have tried to make two scan, one normal and one several steps overexposed 
and then combined together using this technique: 
http://www.dl-c.com/dynamic range.pdf

From this page http://www.dl-c.com/                  (under documents)

Best regards

Erik

tisdagen den 29 april 2003 21.47 skrev du:
> Laurie  --
>
> Thank-you for suggesting Vuescan.  Someone else mentioned it, too.  How
> does one acquire this program?
>
> In recommending I develop my film differently, alas, you are in effect
> telling me the same thing the Minolta tech rep did.  Developing film
> differently would not help with the thousands of rolls already developed
> through the years.
>
> Yes, of course, if a dense area of a negative is in fact "bullet proof" it
> cannot be "burned in" on an enlarger in a chemical darkroom.  I was not
> talking about bullet proof highlights, however, just dense areas that
> sometimes appear in negatives in spite of ones best effort to adjust
> exposure and development techniques to the situation; how else could I, as
> I said I could, easily deal with them on an enlarger using the burning-in
> technique?
>
> (I have never thought it a practicable idea, by the way, to try to use the
> zone system when shooting roll film to capture subjects that do not just
> sit there, as in fact my subjects almost never do.)
>
> I hope then that this "multipass" technique possible with Vuescan overcomes
> the limitations of scanners just as burning and dodging techniques employed
> skillfully can go a long way toward overcoming the limitations of
> photographic paper in a darkroom.
>
>
>  From: "LAURIE SOLOMON" <laurie@advancenet.net>
>
> > Reply-To: filmscanners@halftone.co.uk
> > Date: Tue, 29 Apr 2003 10:38:46 -0500
> > To: bardmartin@earthlink.net
> > Subject: [filmscanners] RE: Burned-Out Highlights
> >
> > I have two suggestions: (1) when processing your film, you might try
> > either underdeveloping the negatives a little so as not to have such
> > dense highlights or a compensating two developer process to get the
> > shadow detail without blowing out the highlight detail (you did not
> > memtion if the negatives themselves lack significant highlight detail or
> > not) and (2) try Vuescan scanning software, which does not make use of
> > the twain scanner driver but uses a proprietary driver developed by Ed
> > Hemrick and which has multiple pass and long exposure providsions that
> > will help bring highlight out of both highlight and shadow areas if it is
> > there in any significant fashion.
> >
> > I am not familiar enough with Silverfast or the Polaroid software to know
> > if they also have such features or not.  If they do, you might try to use
> > them. I am familiar with the Minolta software and know it does not have
> > such features, unless it is in the newer versions of the software, which
> > is why many Minolta users turned to Vuescan.
> >
> >> Confronted with a dense highlight when working in a traditional chemical
> >> darkroom, I could easily deal with it by "burning it in" on the print.
> >
> > Not if it were bullet proof.  If it is too dense, any prolonged exposures
> > to burn in the higlight detail would have fogged the paper so there are
> > limits to what you can do here too.  If the highlights were coming out
> > very dense on a regular basis the only way to try and handle it would
> > have been to adjust one's film developing process like I suggested above.
> >
> >> On the scans, however, however far I take the highlight density value
> >> down
> >
> > from
> >
> >> 255, either in the scan process or in PhotoShop, the scanner has given
> >> me
> >
> > no
> >
> >> detail at all to work with.
> >
> > To be expected since both the scanner software and Photoshop work on the
> > scan data post data acquisition or capture so if it was not captured by
> > the scanner sensors and digitalized in the raw file there is nothing for
> > the software to work with.
> >
> >
> >
> > ---Original Message-----
> > From: filmscanners_owner@halftone.co.uk
> > [mailto:filmscanners_owner@halftone.co.uk]On Behalf Of Bard Martin
> > Sent: Tuesday, April 29, 2003 9:55 AM
> > To: laurie@advancenet.net
> > Subject: [filmscanners] Re: Burned-Out Highlights
> >
> >
> > I hope someone out there can help me with a problem I have scanning black
> > and white negatives.
> >
> > The first film scanner I bought, a Minolta, a couple of years ago, was
> > inadequate when it came to recording detail in the dense (highlight)
> > areas of my negatives.  I realized I had to go elsewhere when the only
> > thing a Minolta tech rep could suggest to solve the problem was to shoot
> > with a different film.  Perhaps they have improved their product since
> > then.
> >
> > I now have a Polaroid SprintScan 120.  Using this device I have much
> > better success with the highlights in my negatives, but the problem does
> > persist with some of them, to the extent that nothing I do with my
> > SilverFast software helps.   I haven't tried Polaroid's own software yet,
> > but I suspect that the problem will persist.
> >
> > Confronted with a dense highlight when working in a traditional chemical
> > darkroom, I could easily deal with it by "burning it in" on the print. 
> > On the scans, however, however far I take the highlight density value
> > down from 255, either in the scan process or in PhotoShop, the scanner
> > has given me no detail at all to work with.
> >
> > Any suggestions?  --  Bard
> >
> >> From: "Julie Cooke" <julie@lightdrawing.com>
> >> Reply-To: filmscanners@halftone.co.uk
> >> Date: Mon, 28 Apr 2003 23:33:30 +0100
> >> To: bardmartin@earthlink.net
> >> Subject: [filmscanners] Re: Nikon Coolscan LS4000 not recognised
> >>
> >> Help! My scanner is no longer recognised, If I go to Control Panel,
> >
> > System,
> >
> >> Hardware, Device Manager under Windows 2000 I know longer see Scanners
> >> although the firewire interface is listed. When I switch the scanner on
> >> I just get the flashing LED, so I guess it's either a hardware
> >> malfunction
> >
> > or
> >
> >> a connection problem.
> >>
> >> I haven't used the scanner since installing a PCI modem for ASDL, does
> >> anyone know if that would cause a conflict?
> >>
> >> Thanks
> >>
> >> Julie
> >> ---
> >> Outgoing mail is certified Virus Free.
> >> Checked by AVG anti-virus system (http://www.grisoft.com).
> >> Version: 6.0.467 / Virus Database: 266 - Release Date: 01/04/2003
> >>
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-- 
Erik Kaffehr                erik.kaffehr@swipnet.se alt. ekr@ksu.se
Mariebergsvgen 53          +46 155 219338 (home)
S-611 66 Nykping           +46 155 263515 (office)
Sweden                      -- Message sent using 100% recycled electrons --

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