Re: Recommendations for Spectro and Profile
Re: Recommendations for Spectro and Profile
- Subject: Re: Recommendations for Spectro and Profile
- From: Andrew Rodney <email@hidden>
- Date: Fri, 12 Oct 2007 08:25:39 -0600
- Thread-topic: Recommendations for Spectro and Profile
On 10/12/07 8:08 AM, "Mike Eddington" wrote:
> Hey Andrew, could you clarify...when you say "use uv" are you saying
> that you measure with uv filtration?
Yes. I was using dual measurements which take longer, then trying to figure
out what to do with both (let the software compensate or not). I was hoping
to see future software capability that may use both to do something more
intelligent than what we have today.
Bill said in no uncertain terms (and he was referring to the iSis) USE UV
cut, you'll get better gray balance. I just finished building a lot of
profiles for the new Epson Exhibition Fiber paper for a lot of printers and
the results are fantastic!
An interesting aside, we used multiple Epson printer models (4800, 4880,
etc). Used Bill's 5202 patch target. Read three targets from multiple
printers into the iSis. The Epson 4800's had an average deltaE 2000 of 0.81!
The 3800 was a fraction over 1. Even the 2400 had very low average deltaEs.
Of course, Bill built fantastic profiles he supplied for Epson years ago and
most users where happy, indicating to me at the time, the variation among
the printers, when properly setup are very consistent. For those making
custom profiles, not good news <g>. Now when users ask me about custom
profiles for their Epson's, my first question is, "are you using Epson
paper?" If the answer is yes, I tell them to try the PRO profiles (built in
the US) from Epson before they go the custom route. Most find the canned
profiles are just what they need, a custom profile isn't necessary. This of
course bodes well for the incredible consistency of these printers from unit
to unit. NOTE, the inks DO expire! So its important that users have inks
within the expiration date and of course all heads are firing and the unit
is behaving as it should, and did from the factory!
Then there's the question of a Spectrophotometer built into a printer. Now I
suspect its useful if you're using a lot of papers and don't have good
profiles supplied to you OR (and I don't know if this is true for other
manufacturers), you're process control isn't all that hot. One thing is
sure, building a Spectrophotometer into a printer has to add to the cost!
Andrew Rodney
Author "Color Management for Photographers"
http://www.digitaldog.net/
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