RE: Epson 4900 Calibration
RE: Epson 4900 Calibration
- Subject: RE: Epson 4900 Calibration
- From: Steve Upton <email@hidden>
- Date: Fri, 01 Apr 2011 09:53:24 -0700
At 10:06 PM -0400 3/31/11, Roger Breton wrote:
>Almost ;-)
>
>I'm concerned when comparing generations of Epson's printers. I have used
>9600s for years now, with GMG and I must say, when I compare my proofs to
>the newer Epson models, those having newer ink sets, the Ultrachrome K3s,
>invariably, I'm thrown back by the visual differences I find, all at
>*comparable* delta Es (well below 1.5 avg and max below 4). These days, I do
>all my measurements using the iSis (the days of the DTP70 are long gone) but
>I hope to experiment soon with Minolta FD-7. My tests are all done on the
>same, non-fluorescent substrate. So, the visual difference I observe between
>prints made with the various Epson generations, ought to stem from the
>printer's various generations of inks. The typical difference I encounter
>with the newer Epson inks is in the direction of more red. In comparison,
>the older 9600's proofs appear yellowish. I remember my days of training at
>GMG when we had both a 7800 and an Z2100 in the same room, on the same
>substrate, same instrument, same iterated delta Es, yet the differences
>between Epson's and HP's was not staggering but quite visible. Shopping for
>a new printer today, I can't say I'd give my money to Epson blindfolded, as
>I fear we'll have to expend more magenta to match the same delta E -- I see
>it every day with customer's supplied Epson 9880+ proofs.
>
>I was hoping that HP ink technology would offer a different visual quality
>than Epson's.
>
I like and appreciate the benefit of on-board spectros in printers but this visual difference can also be caused by an unavoidable, underlying flaw of onboards - you can't share a single instrument to profile the devices.
Inter-instrument disagreement is still pretty bad in some cases - especially when they are different technologies (Pulse vs Munki/i1).
It's also VERY tough to verify the instrument effectively using a color reference like the Vogelsong and our Maxwell MeasureWatch service.
So, greater ease of use = less control and accuracy. Unfortunate but true.
Regards,
Steve
________________________________________________________________________
o Steve Upton CHROMiX www.chromix.com
o (hueman) 866.CHROMiX
o email@hidden 206.985.6837
________________________________________________________________________
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