Mike Chaney's Tech Corner
July 25, 2021, 07:35:32 PM *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
News: Feb 2013: Qimage Ultimate Challenges... have fun and explore features!
 
   Home   Help Search Login Register  

Professional ICC Profiling Software for Windows
Create custom ICC profiles with
Profile Prism for accurate color!
Pages: [1]
  Print  
Author Topic: IT-8 Target 1&2  (Read 486 times)
CHoffman
Jr. Member
**
Posts: 92


View Profile Email
« on: May 31, 2021, 02:39:59 PM »

1) My Red River factory profile produces a wider gamut in the green than my Profile Prism efforts. My target has been stored well, but is 15 years old! I have a pretty good T/R densitometer (Xrite 811, I think). Can I measure my target and compare the results to the matching text file to determine if it's faded? What's the organization of the file? Can I create a new one myself?

2) I've seen some PR stuff on targets with wider range. Would something like that deliver a better profile? (If I could afford it!) My scanner is an Epson 4490 Photo. I think it's decent, but could it be causing a lack of gamut in the green? Maybe I have problems with other colors, but right now I'm fixated on green. FWIW, I like the results of my Profile Prism profiles better than factory in every area except for the green limitation.
Logged
admin
Administrator
Forum Superhero
*****
Posts: 3315



View Profile Email
« Reply #1 on: June 01, 2021, 10:40:00 AM »

It may be a limitation of using a scanner with a fluorescent light source.  Those can cause metamerism since the light source is not full spectrum.  Scanners with LED light sources produce a more consistent result.

Regards,
Mike
Logged
CHoffman
Jr. Member
**
Posts: 92


View Profile Email
« Reply #2 on: June 01, 2021, 02:39:03 PM »

Interesting! It does have a florescent source. I'll see what the big scanner/copier at work has and see if I can use that. My control over what it's doing is more limited but being new, I bet it uses LEDs.
Thanks!
Logged
Pages: [1]
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Valid XHTML 1.0! Valid CSS!