B/W Negatives are Grainy

General topics about SilverFast

Moderator: LSI_Moeller


djohnson
Visitor
Posts: 1
Joined: Fri Apr 28, 2006 5:08 pm

B/W Negatives are Grainy

Postby djohnson » Fri Apr 28, 2006 5:15 pm

I am trying to scan black and white negatives using a Microtek ArtixScan 4000tf and SilverFast AI V6.4.3r9. I am doing a 4000dpi high res scan for archival purposes. The film is Kodak 5062 PX. The scans are coming out VERY grainy and VERY poor quality. I have tried all kinds of different settings with no luck. Are there any "magic" settings for this combination?? I have had good luck with doing color scanning on this setup, but the b/w isn't working. Can anyone PLEASE HELP??


Thanks!

djohnson

User avatar
RAG
SilverFast Master
SilverFast Master
Posts: 761
Joined: Wed Jan 12, 2005 7:59 am
Location: Sonoma County, California

Postby RAG » Fri Apr 28, 2006 10:17 pm

djohnson,

If you are selecting black and white for your scans try using 48-bit Color. This will give you two additional channels of image information. In addition try using the Gain filter to smooth the images.
Member in good standing - NAPP
A picture is worth a thousand words! :-)

victor
SilverFast Beginner
Posts: 15
Joined: Sat Jul 08, 2006 10:15 am
Location: israel
Contact:

Postby victor » Wed Jul 12, 2006 2:08 am

yes - as RAG says - use the 48 color all the time and disaturate it if u want pure grey.
whatch for the sharpening mask - make sure it is not wilde. u hae preview there. dont use the auto settings, surely not with the b/w films. here is the setting for b/w sharpening that i use as an example. but watch the movie of sharpening or read the relevant chapters to see how well u can control it.
<img src="/img/forum/usm_copy1.jpg">[/img]

IanBarber
Visitor
Posts: 9
Joined: Thu Mar 10, 2016 2:58 pm
Scanner: Epson V800
SilverFast Product: Ai

Re:

Postby IanBarber » Tue Jun 07, 2016 12:13 pm

RAG wrote:djohnson,

If you are selecting black and white for your scans try using 48-bit Color. This will give you two additional channels of image information. In addition try using the Gain filter to smooth the images.


What are the advantages of scanning Black and White Negatives in RGB over 16 Bit Grey Scale ?

User avatar
LSI_Ketelhohn
LSI Staff
LSI Staff
Posts: 4265
Joined: Wed May 28, 2008 11:19 am
Scanner: all
Location: Kiel, Germany
Contact:

Re: B/W Negatives are Grainy

Postby LSI_Ketelhohn » Thu Jun 09, 2016 3:19 pm

Dear user,

Using 48 bit would allow you to keep any distinctive characteristic of the B&W film.
Most B&W films have a slight green or blue hue and this would bee preserved this way.
Also further editing might require RGB channels in some applications. Not all tools can work with a true greyscale image.

Kind regards,
Arne


Return to “About SilverFast”

Who is online

Users browsing this forum: No registered users and 2 guests