|[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]|
> ----- Original Message ----- > From: "Don Dement" <email@example.com> > > I've read that some printers use only black ink below about > this value, > > and color above. > > > > Could this be something that Nikon has set deliberately, > anticipating > > printing without black or is that stretching an observation too > far? ----- Original Message ----- From: "Ernst Dinkla" <E.Dinkla@chello.nl> > Epson printers do indeed print only black ink with their normal > drivers. As most modern printing processes do. The point where > UCR or GCR eliminates composite grey and where ink layed down > becomes black only, varies between 15 and 25 RGB. Printer type > and paper settings dependent. Above 15 to 25 RGB there's still > black used it will be cut out halfway approx: 125 RGB. The last > depends more on the droplet size of the printer used. The finer > the droplet the longer the range of the black. With RIP's the > control of black generaton is given to the ink limit setting + > custom profiles. > > Sometimes you will observe a better black above 15 or 15 RGB > where there's still some composite grey with the black. Depends > on the absorbtion of the paper, sometimes black only isn't enough > ink. > > I do not see any advantage of having no information in your file > below 23 RGB. Not in relation to the behaviour of the Epson's > printer driver nor to any other printing process nor to any other > display medium. I have used the method to scan a negative as > positive and do the reversal in Nikonscan to get the information > below 25 RGB. It prints a lot better on an Epson 9000 + Epson > driver with a custom profile. Made all the difference on a print > with shadows between the roots of a tree. > > Ernst Most interesting Ernst. I've only scanned a few color negs with the 8000 so far, but my impression was neg scans come in to the preview a bit "soft" compared to chrome, and needing a bit more correction pre or post scan, but having full detail to film base plus fog. I'll have to look more closely next time I scan a neg. Dave - Turn off HTML mail features. Keep quoted material short. Use accurate subject lines. http://www.leben.com/lists for list instructions.