Prescan looks good; scan looks bad

General topics about imaging

Travis
Visitor
Posts: 5
Joined: Tue Aug 17, 2010 2:39 am
Scanner: Plustek OpticFilm 7600i
SilverFast Product: SE Plus

Prescan looks good; scan looks bad

Postby Travis » Sun Jul 03, 2011 12:01 am

Everything looks fine when I make a prescan with gamma set to 1.0:
Image

However when I scan it, it doesn't look like the prescan:
Image

The best results I've gotten are with Gamma set to 2.2 and "for HDR output" turned on. (Pictured above.)

The prescan is supposed to look like the real thing, isn't it? How do I get the scan to look right?

Thanks.

LSI_Morales
SilverFast Master
SilverFast Master
Posts: 1430
Joined: Mon Oct 22, 2007 9:33 am

Re: Prescan looks good; scan looks bad

Postby LSI_Morales » Mon Jul 04, 2011 9:55 am

Hi Travis,

You are probably scanning in HDR mode which creates an unmodified raw file of your pictures, it means the inversion into positive is not made in SilverFast but it seems to me you are doing it from photoshop.

With raw files the orange mask of your negative picture is not removed. hence the blue cast.

In the case of negatives you have a couple of options:

-Scan and save your picture in 24 bit scan mode where the inversion to positive will take place in SilverFast (along with the orange mask detection).

-If you want to scan in 48 bit HDR, then you can use SilverFast HDR (the editing application) to make the mask detection and inversion to positive.

Cheers
Alejandro Morales

LaserSoft Imaging
Media manager, Software testing


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