On Saturday 05 August 2006 20:56, Simon Roberts wrote: > --- "Hal V. Engel" <[EMAIL PROTECTED]> wrote: > ... snip much useful info... > > > The generic D70 profile will probably work OK. > > Hmm, you're right. I found this on the ufraw site, and it does seem > believable. Much better than sRGB, which is otherwise the default. I > also found some profiles on the (windoze/Mac) CD that came with the > camera, and one of them "/home/simon/NKDBase_NEF.icm" seems to produce > reasonably good results--albeit rather low contrast--with RAW (.nef) > files. Unfortunately, Nikon's help desk seem largely illiterate about > this. Maybe I asked wrong, or just happened to get the wrong > individual. I'll probably try again.
This is typical. Most camera vendors are still hiding the color management stuff in their RAW processing software and users have no access to and no control over it. If users don't have control over any settings that affect color management or how profiles are used then why would the help desk folks know anything about it or have any training in what to say to users? This is something that the camera vendors are trying to hide from users. Software such as UFRAW and some commercial third party RAW software does expose this functionality to users. But don't expect Nikon, Canon or any camera vendor to provide support. > > > Also I have purchased ink from MediaStreet but I did not know that > > they also > > would create custom profiles. How much do they charge for this > > service? > > Mediastreet do it for free :) You provide the paper and ink, and they > keep the information for their database. But they don't charge for it > and give you these for free for any device/paper combination they have > previously profiled. I guess if you want one that's specific to your > own individual printer but the printer/paper combination is already in > their database, you could invent some fictitious paper and claim it was > that :) See: http://mygallery.mediastreet.com/profile_finder.html. If > they can't find your combination in their DB, they send you an email > inviting you to print off the targets (also downloadable for free) and > mail them to them. The targets are two sheets, with about 900 swatches > total, so I'm guessing it's a fairly serious profiling system they're > using. > > Many thanks for all the info, it's much appreciated. I just had a look. I don't see anywhere how I can specify that I want a profile for a CMYK work flow. But for Windows and Mac users that are using their ink and/or paper this looks like a good resource to find reasonably good RGB profiles. So I will be giving this a try for my Windows printing work flow. A 900 patch printer target is typical for printer profiling processes. The IT8.7/3 printer targets are 928 patches and the IT8.7/4 target has 1617 patches and both come in RGB and CMYK versions. I have heard of users who use ArgyllCMS to generate printer profiling targets with over 2000 patches but I think most use 750 to 1500 patches. There is also a IT8.7/3 basic target that has only 182 patches. Also ArgyllCMS will generate a small patch count target to allow you to get a quick but close profile and will then allow you to generate a large patch count target based on the measurements and profile of the first target that places more patches in areas where it looks like the printer has linearity problems. So the second target is specifically adapted to the printer to get the best possible results. As far as I know ArgyllCMS has the only profiling tool that does this. Most experts say that for single target profiles that the differences between smaller targets like the IT8.7/3 basic and larger targets is very small. Hal ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Lcms-user mailing list Lcms-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lcms-user
