Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@y..., "TerryR" <terryr1028@h...> 
wrote:

(snip)
> 
> One thing I did notice though, in normal tungsten lighting the 
Piezo 
> print has a slight greenish tone, not a lot but you can detect it. 
> Put it under normal daylight from a window that does not have 
direct 
> sun coming through it (this will actually show the extreme of 
> metamerism of any ink better than putting it in direct sunlight), 
and 
> it is quite neutral, even losing some of the warmth. The MIS VM 
using 
> the neutral cool curve is just that in normal tungsten lighting, 
but 
> go to that same window as described above and it warms up and picks 
> up the greenish tone. They actually reverse their appearance from 
> normal tungsten lighting!
> 
> Anyone else see this happen?

Terry,

YES, YES, YES and YES. I have remarked upon all of the above and it 
has been noted by others as well. I have to say that not all people 
see the Piezo metamerism. I think this is due to variations in degree 
with different printers/ink batches and to variations in individual 
color vision.

I have leaned toward the MIS VM since I view my prints almost 
exclusively by tungsten and halogen light.

> 
> Also, it seems as if the 980 may be a good Piezo printer if you are 
> looking at smaller paper sizes. I haven't had an ink problem yet (5 
> days so far) and don't see any signs of banding. The driver prints 
> just like the Epson driver in terms of progression, but I haven't 
> timed it yet. 

That is good to hear. It looks like it should be a workhorse of a 
printer.
> 
> The Piezo system is more touchy about how you convert from RGB to 
> grayscale though. If done right on a calibrated monitor you will 
> print what you see. Do it wrong, and it isn't even close. If the 
> image is an embedded grayscale that matches the current workspace 
> though it is quite accurate. With the MIS VM, it always matches the 
> screen coming from grayscale or using say the channel mixer to take 
> an RGB to monochrome. And if I want to see the toning effects prior 
> to printing the preview profile I made from Profiler RGB will get 
you 
> close (I still haven't tweaked the first one I made yet).

Could you elaborate on this a bit? Are you using the Profiler RGB 
built profile with Photoshop's Softproof function?

Thanks,

Martin



> 
> --- In DigitalBlackandWhiteThePrint@y..., "Martin Wesley" 
> <mwesley250@e...> wrote:
> > Chris,
> > 
> > I have Piezo inks and software on a 1200 and MIS VM inks with 
Paul 
> > Roark's curves on a 1280. I do not see any difference in 
sharpness 
> > between the two with the 1280 printing at 1440 or 2880.
> > 
> > I don't know enough about the Epson driver to know if it really 
> drops 
> > all data above 360 or not. I am a bit skeptical in that there 
does 
> > seem to be a slight difference between a 360 and 720 file 
although 
> > not visible at normal viewing distances.
> > 
> > I have also seen output from an 1160 using Piezo and MIS FS with 
> the 
> > Epson driver and cannot tell them apart.
> > 
> > Martin Wesley
> > 
> > 
> > 
> > 
> > --- In DigitalBlackandWhiteThePrint@y..., "Chris Hargens" 
> <ldmr@c...> 
> > wrote:
> > > In his comparison of prints made using the Piezo system with 
> those 
> > > made using Epson drives and color inks, Michael Reichmann 
states 
> > > that "what's also much more obvious when looking directly at 
the 
> > > prints is that the Piezo prints show more detail. The Epson 
> driver 
> > > can not take an input file of more than 360 DPI. Feed it a 
higher 
> > > resolution file and the data is discarded by the driver. A 
Piezo 
> > > driven printer can take a much higher resolution file, and make 
> use 
> > > of it." Assuming that this is the case, then wouldn't the same 
> > > condition and result apply (perhaps to differing degrees) to 
all 
> > > inksets, including the various quadtone sets available, when 
used 
> > > with the Epson driver rather than the Piezo driver? I guess 
what 
> > I'm 
> > > wondering is just how much of a difference there is. And, yes, 
> I'm 
> > > sitting on the fence, Epson 1160 in hand, trying to decide 
> whether 
> > I 
> > > should fork over big bucks for Piezo software -- and run the 
risk 
> > of 
> > > my now out-of-production printer breaking down and then having 
to 
> > buy 
> > > _new_ software for the replacement printer, etc. -- or go with 
> the 
> > > MIS VM inkset, sweat out the paper-profile limitations...