Yahoo Groups archive

Digital BW, The Print

Index last updated: 2026-04-28 22:56 UTC

Message

RE: [Digital BW] best scanner for b&w

2003-02-24 by Alessandro Pardi

I get better results with 48bit RGB scanning, picking only one of the three
channels, for the following two reasons:
 
1) Channel noise.
2) Channel disalignment.
 
Typically, although both issues are obviously scanner dependent, one of the
channels is the best in the noise department, and the three channels are not
perfectly aligned. Using *any* channel mix will therefore degrade the final
image, unless you only pick a single channel (i.e. a 100% 0% 0% mix).
I repeat that you should verify how much your own scanner suffers from these
problems, but they are visible in both my Canon FS4000 and Epson 3200.
 
Alessandro
-----------------------
Jerry wrote:
 
 > I frequently scan my 4X5 100TMAX negatives with an Epson 2450 and 
 > have been pleased with the results.  
<snip>
 > I have experimented with scanning at 48bit RGB but I see no 
 > difference in my results.  
<snip>
 
 > -Jerry





Yahoo! Groups Sponsor	

ADVERTISEMENT
 
<http://rd.yahoo.com/M=246920.2960106.4328965.2848452/D=egroupweb/S=17050191
82:HM/A=1464858/R=0/*http://www.gotomypc.com/u/tr/yh/cpm/grp/300_Cquo_1/g22l
p?Target=mm/g22lp.tmpl> 	
 
<http://us.adserver.yahoo.com/l?M=246920.2960106.4328965.2848452/D=egroupmai
l/S=:HM/A=1464858/rand=621591289> 	

Please visit the Group Homepage to check the Files, Bookmarks, Polls and
other resources as they are often being updated. The page is at:

http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint
<http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint> 

If you wish to receive no emails or just a daily digest, or you wish to
unsubscribe, please edit your Membership preferences by visiting this same
page.

Please follow these basic guidelines:
- Include your full name with your message.
- Include the address of your website, if you have one.
- As threads develop, trim off excess portions of earlier messages to keep
them short.
- As the topic of a thread changes remember to change the subject header.
- Good manners are required at all time. No personal attacks or
&amp;amp;quot;flames.&amp;amp;quot;
- Complete your Yahoo profile.
- Before posting a question, search the message archives and the various
resources on the homepage. 




Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service
<http://docs.yahoo.com/info/terms/> . 



[Non-text portions of this message have been removed]

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.