This is a discussion on Tweak more black in black - Adobe Color Management ; A converted black point of roughly 34 seems about normal for a 2200. The profile is basically mapping a 0,0,0 absolute black to the point for the Epson paper, below which there is no further detail. If the profile had ...
Re: Tweak more black in black A converted black point of roughly 34 seems about normal for a 2200. The profile is basically mapping a 0,0,0 absolute black to the point for the Epson paper, below which there is no further detail. If the profile had mapped the 0,0,0, back down to zero, your blacks probably wouldn't be any blacker, but you would lose a significant amount of shadow detail. Now you can try, just for an experiment, pushing the blacks down to see if it makes a visible difference. My guess is that it won't be very much, but it's easy enough to try. The other factors are the type of paper you're putting through the printer, and the fact that the (at least) the 2200 was always a bit weak in the blacks to begin with.
Re: Tweak more black in black Jan,
this is quite understandable:
OK, I have tried the BPC but can't measure a difference.
Perceptual (automatically with BPC) is mostly near
to RelCol with BPC. Can be tested by common profiles
like ISOCoated. I don't say it's the same.
Medium-Black at L*=34 is IMHO 'toilet paper quality'.
Less provocative: is this Epson paper near to newsprint
paper ? Probably much better.
Best regards --Gernot Hoffmann
Re: Tweak more black in black My Eye-One Pro measurement data for an Epson SP 2200 shows L* values ranging from 6.1 to 6.5 for RGB 0 0 0 patches. This is when printing on the Epson Premium Semigloss Photo Paper.--Larry
Re: Tweak more black in black Yes Larry,
But the defenition "Toilet paper" thanks Gernot is close enough for the material I have to make a profile for. It will give me no more black as the 34, not even if I p...s on it:-)
May be I need to overthink my strategy in this. Basically the profile I need is going to use for different media even if we know that each media need ideally to have his own profile. Each media will observe the ink differently, some more and some less but never in the quality as where you guys are working with.
In addition the inks I am using do not need a for inkjet pretreated media to print on so I have choosen to create a profile on a paper which is in between a somewhat good inkjet paper and "Toilet paper".
Re: Tweak more black in black Jan,
If you're printing on what you already know to be crappy paper, what exactly are you expecting? It sounds like you're already at the limits of what the paper can deliver but are expecting some sort of miracle. It ain't going to happen. Laws of physics prevent that.
Re: Tweak more black in black Yes Peter, you'r right. I was indeed expecting to much and I was already at the limit.
I guess to wait until I can test the profile onto the real materials to see what happen if the forced limitation was a good idea or if I need to profile a much higher media in order to print onto a lower quality product.
Thanks
Re: Tweak more black in black Now I am in the process to profile an other printer on the same poor materials and found out that the blacks are indeed looking differently and now I have something to compare the two printers.
The diffences are:
Printer 1: Is a 6 color printer and prints black only if 100% black is needed. All other (Grey) shapes are printed without using any black and therefore does not look black at all. It looks like it is trying to print the greys solely with mixing the colors and ends up pale with no saturation.
Printer 2: Is a 7 color printer and print 100% black in the same density as the first one but is using black and/or light black on top in certain range of grey tones.
Could it be a mismatch in my measurements of the first profiles? I have made three profiles which looks all similar. Or is it normal for a 6 color printer to use black as it shows and this is solely a greybalance issue?
Jan
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