Recent content by pharmacist

There is something very strange with the ti1 files: it generates greenish space bars when I choose the -b argument in printtarg (not real white/black). it doesn't make sense to me and removing the last patches in your ti1 file still generates those extra black patches....I will wait.

Is it possible to upload the bare patch set with only 729 + 234 Extended grays patches (ti1 file with 963 patches in total) without the extra black and white patches up to 989 patches ? The reason I want to play with printtarg to obtain an optimal placement of the patches.

Ink can differ slightly from batch to batch and colour drifting can happen over time. The reason why you will need to calibrate the white point every time before scanning the patches......how do you calibrate a scanner before scanning the patches ???

I am a bit puzzled: how can you know the colors scanned with the ET-8550 is the right one if there is no reference to compare to ? I had to make a custom scanner target for my Epson ET-8550 with my vintage i1Pro1 and the iMatch software: using a target that I scanned with both the ET-8550 flat...

https://www.ddisoftware.com/printprism/ This would a revolution when we can generate printer profiles without a reference chart and only a software package of $34.95..... It says even better printer profiles than a hand scanned spectro.....

Could you upload the combined and corrected expert plus extended grays ti.1 file too ? Note use D50 and not D65 for conversion !

Just to say the above target is not usable, because it gives reading errors,probably the conversion is not done well: There is something wrong in the conversion. I have tried both the i1Pro1 and the i1Pro2 and the errors are the same. Please check your ti1 files

Thanks for the update. I took some time to use PS to manipulate a bit in order to get a combined Spyderprint 729 patch Expert target with the 238 patch Extended patch target into 2 sheets of A4 for better scanning experience with the i1Pro1/2 spectro scanning table/ruler. The extended grays...

Yes you will have to press the button to measure, but so does the i1Studio/Colormunki too.

Yes you can use it for spot checks with spectra (see printscreen above), BUT AFAIK not possible for screen calibration, which the i1Studio can do.

I repeated the workflow again with Europrint Satin paper with Inktec Powerchrome K3 ink in my Epson P900 using this particular 300-patch ArgyllCMS I created a printer profile using the same target (a small one on 13x18 cm) for the i1Pro and one on A4 for the CR30 and this is the softproofing...

just leave those settings on standard settings (B2A detail and total ink limit: the last one is for CMYK profiles only and you are going to generate a RGB printer profile).

@x64, @micronica, @crenedecotret : please add extra information to this topic in order to improve this rudimentary how-to manual if I have forgotten something or made a mistake.

To pick up the first post I will now show you how to use the CR30 dispensary. Thanks to @crenedecotret efforts to make a special randomizing ti1/pxf-file generator I managed to make a new 300 patch target for the CR30 which is finally randomized (in order to get a sharp in color/hue between...

Well actually my first impression is that the 300 patch ArgyllCMS/CR30-target (a single sheet of A4) is comparable to the X-Rite i1Studio 50 + 2x50 BW neutralising method (the version you are using the second patch series grey/near neutral steps to neutralise BW printing in color images). I am...