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How save a silver halide negative scan as a positive

PostPosted: Sun Feb 15, 2009 5:04 pm
by davidx
I use Silverfast to scan a silver halide negative and it displays a positive version of that image - however when I scan the negative to file (as a TIF) it stores the negative image, and I have to use PS to convert it.

How can I set up Silverfast to store the positive conversion (which is always does if I scan a color negative.

Thank-you

Re: How save a silver halide negative scan as a positive

PostPosted: Mon Feb 16, 2009 10:10 am
by LSI_Luebker
Dear davidx,

I am sure you are using 48Bit HDR as Scanmode, which basically a raw format for postprocessing with our SilverFast HDR.
You would need to use the 48Bit Color or the 48->24Bit mode to retain the corrections you did in SilverFast.

best regards,

Thomas Luebker,

LaserSoft Imaging AG

Re: How save a silver halide negative scan as a positive

PostPosted: Mon Feb 16, 2009 12:51 pm
by davidx
Thank-you for your reply - but I am afraid I simply cant get a decent scan.

I had hoped I could do a scan and after adjustments save a positive image, which is 'useable' without further processing.

I am using V6.4.4, and the film is Kodak Plus-X.
Rather than elaborating all the details of settings which do not work - could I ask you for some settings which will give me
1. A positive image TIF file
2. Allow me to use the SilverFast adjustments (Curves and Levels)
3. Produce a scan which is not just Black and White, but includes a full range of greys without blocked shadows and blow highlights - which I what I can get with NikonScan set to scan the negative as a Color Transparancy with Post processing in PShop.

I can upload samples if you want to see where I am coming from

Thank-you

David

Re: How save a silver halide negative scan as a positive

PostPosted: Tue Feb 17, 2009 11:37 am
by LSI_Luebker
Dear David,

normaly it works straight forward

please upload some of your scans so I can further assist you.

best regards,

Thomas Luebker
LaserSoft Imaging AG

Re: How save a silver halide negative scan as a positive

PostPosted: Tue Feb 17, 2009 12:05 pm
by davidx
Dear Thomas,

Attached are three (resized) scans. Two of the negative as a positive (to give a negative result) - with SFast and NikonScan - and one to give a positive result using NikonScan, all from a Nikon IVED scanner.

The SF scans are missing all the mid-tones.

Thank-you for your help

David

Re: How save a silver halide negative scan as a positive

PostPosted: Thu Feb 19, 2009 12:52 pm
by davidx
Hi Thomas

I uploaded three scans as requested - not sure that I have done it correctly, so just checking - if they didnt arrive or are otherwise unrecognisable please let me know

thank-you

DavidX

Re: How save a silver halide negative scan as a positive

PostPosted: Fri Feb 20, 2009 5:17 pm
by LSI_Luebker
Hi,
sadly you have not been successful uploading your images you could also post a link here, open a ticket with us or simply try it again.

best regards,

Thomas Luebker,
LaserSoft Imaging AG