Thanks Ron! As a coincidence I'll finally be ordering my 3800 tomorrow!Friends
Three items that may be of interest to the digital negative community.
First, I have completely rewritten my Manual describing how to write Quadtone RIP profiles for making digital negatives. The updated Manual is available as a free download from my website, www.ronreeder.com. The revised approach in the new Manual is much simpler to apply and should get you to a useable profile more quickly.
Second, I now have a section on my website where I will post ready-made QTR profiles for some combinations of Printer/Photo Process. These profiles may help you get started in making a custom QTR profile fine tuned for your own printing process.
Third, I have posted an article on writing a QTR profile designed to make a digital negative on the Epson 3800 that gives very good results when contact printed on a variable contrast silver/gelatin emulsion. Combining the smooth printing characteristics of the 3800 print head with a QTR profile that makes intelligent use of the K3 inkset results in a negative that comes very close to equalling an in camera negative for silver/gelatin printing. It is still not perfect (in areas of smooth tone I can still see bit of digital dot pattern) but this is the best I have ever accomplished on silver/gelatin. See what you think.
Enjoy, Ron Reeder
Thanks Ron! I'll give them a try. Do you print the silver negatives also on OHP or on the white Pictorico?
In the readme files with your QTR profiles you specify a method to change the path to the .acv curve. This can be done much easier if you remove the absolute path (only working on your computer) alltogether and just leave the curve name. If you keep curve and .txt file together in the same folder (with the quad3800 installer) this (relative) path works allways.
I thought the ultimate test of the system would be to try and make a useable silver gelatin neg on clear OHP, so that is what I did. If someone wants to try out the same profile on white film, I would be quite interested in hearing the result.
Cheers, Ron Reeder
Yes, but you have to create a .quad file using QTRgui. I assume from reading your post you are doing that.I have a question about installing profiles in XP- is it ok to just rename the textfile with the .qidf extension and save in the 3800 profile folder? I can't seem to figure out any other way to install them on XP. They seem to be loading correctly in both the Curve Creator and the Curve 1 drop-down list in the QTR GUI but it's hard to tell if the profile is getting corrupted or not. The stepwedges I've printed so far are fairly grainy. I remarked-out the curve in the Carbonprint Profile and upped the CMY values from 15 to 20 and that got rid of the grain- so maybe something it happening to the curve in this method of installing the profile?
Ha! I guess it would help if I inverted the step wedge before printing.:rolleyes:
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?