Lists

Terms and Conditions
Lists hosted on this site
Email the Postmaster
Tips for posting to public mailing lists

Re: Quoting accuracy of color measurement instruments

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Quoting accuracy of color measurement instruments

Subject: Re: Quoting accuracy of color measurement instruments
From: Terry Wyse <email@hidden>
Date: Thu, 1 Nov 2007 09:34:06 -0400


On Oct 31, 2007, at 4:27 AM, David Scharf wrote:

iOne Pro: Wow, 35 or 36 bands in 10 nm steps, but only measuring 3.5 nm for each 10 nm band? (According to the on-line brochure). That's a 350 nm spectral range but only 122.5 nm of that range is actually measured (the rest interpolated, I assume). Do I understand this correctly?

I think you've got it backwards. It takes samples at 3.5nm intervals (actually, I thought it was 3.3nm or 3 samples per 10nm, but that's quibbling I guess) or roughly 100 samples and then averages/ donwsamples the results to 10nm intervals. Some of the older X-Rite devices took samples only every 20nm and then upsampled these to 10nm.

Regards,
Terry

_____________________________
WyseConsul
Color Management Consulting
G7 Certified Expert
email@hidden
704.843.0858
http://www.wyseconsul.com
http://www.colormanagementgroup.com


_______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden



Prev by Date:
Re: Accuracy of instruments

Next by Date:
Searching for U.S. Newsprint profile

Previous by thread:
Re: Accuracy of instruments

Next by thread:
Searching for U.S. Newsprint profile

Index(es):

Date
Thread