Same target: scanned by both Colormunki and i1Pro2, differences in profile quality ?

[pharmacist]

Thanks to The Hat who provided my this special 3D printed scanning jig for the Colormunki/i1Studio Photo I could do an interesting experience by using a special ArgyllCMS target that I have modified to be compatible with both the Colormunki/i1Studio 3D printed scanning jig and the i1Pro2 scanning jig:

The resulting profiles can be downloaded below for comparison.

This is the result in iccview.de:

softproofing with both profiles in Photoshop:

As you can see: the resulting profiles using 2 different scanning devices using the same target (Colormunki/i1Studio versus i1Pro2) are very similar.

 

[Ink stained Fingers]

The profiles are very much identical; what printer, paper and inks were used to print the patch sheet ?
The black point is pretty much neutral

 

[pharmacist]

The printer is the Epson SC-P900, using Inktec Powerchrome K3 ink (original Epson PB and Violet), paper: Netbit Glossy 300 gsm (Aldi), driver setting: Black Enhance Overcoat: on (better black level).

 

[Ink stained Fingers]

Thanks for the info, I'm reading a black level of Lab 2.67 0.37 -.03 for the Colormunki test, the i1Pro2 reads the same data.
That's a pretty good black level indeed , with an (almost) perfect neutral tone; it would be of interest how much of that is contributed by the Black Enhance Overcoat - if you just could redo the target print without BEO, all other parameters the same, and run a profile again.

 

[pharmacist]

Here is the profile without Black Enhance Overcoat....strangely enough there is no much difference at all.....

The version with BEO is slightly larger, but only marginally and probably within the error margin.

 

[Ink stained Fingers]

Well - yes - I'm a kind of irritated, the no-BEO profile delivers a slightly better black level than with the BEO option active - Lab = 2,29 -0.19 -0.32, but this remains pretty much neutral with the a and b values. It would indicate that the BEO option does not do any good - at least.
I don't have such a printer nor the resp inks to do any additional testing in this respect to clear the confusion.

 

[pharmacist]

I will give it another test tomorrow, very strange indeed and wil double check again