Yahoo Groups archive

Digital BW, The Print

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

Message

Re: [Digital BW] Re: OPM black banding

2003-04-02 by Robert Morrison

I think using a cool curve with a 2:1 ratio of magenta to cyan should blend
with the warm curve to make a fantastic selenium tone option.  I'm out on
the road now...but I was close to such a profile before I left and will
finish it when I get back in another week...unless Carl wants to knock it
off for us in the meantime...should be easy to do with the ink limit
feature.  Just take your magenta/cyan profile and increase the ink limit on
cyan while decreasing the ink limit on magenta...then relinearize.

Robert

On 4/1/03 10:09 AM, "Antonis Ricos" <antonisphoto@...> wrote:

> Thanks Frank..... I will soon upload Carl's revision of the cool profile which
> should offer a further improvement over mine. I just wanted to do some
> densitometry with it first (and I have a bit of a time crunch!).
> 
> As for the banding... I'll test with my 2200 and if I don't see it, I'll have
> to 
> assume it's an individual printer issue, not a driver issue (even if OPM shows
> it more than other drivers). Did you test with black-only on the Epson driver?
> 
> Antonis
> 
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "culturalvisions"
> <fmward@h...> wrote:
>> I also have a banding problem in the deepest blacks with OPM.
>> My 2200 does not show banding in the same file using the
>> Epson driver.   I will test it on the IP RIP soon.   The banding is
>> subtle (unlike Piezo banding)  and not apparent throughout the
>> black areas of the print.  It almost looks like a scuffed print
>> surface until I look through a loup and see the dotted lines.  It is
>> like the trail of a pizza wheel, but in the wrong direction.
>> 
>> I really like the OPM.  Antonis did a great job on the Warm and
>> Cool profiles.  That combined with the blend option makes for a
>> very easy to use program that has the potential for quality results.
>> I really hope someone has an answer for this banding issue.
>> 
>> Frank
>> http://www.photoeye.com/frankward
>> http://www.culturalvisions.com
> 
> 
> 
> 
> 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
> 
> 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 http://docs.yahoo.com/info/terms/
> 
> 
>

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.