Re: EIZO ColorNavigator and G7 validation
Re: EIZO ColorNavigator and G7 validation
- Subject: Re: EIZO ColorNavigator and G7 validation
- From: Steve Miller <email@hidden>
- Date: Wed, 11 Feb 2009 11:44:08 -0600
- Thread-topic: EIZO ColorNavigator and G7 validation
I believe they used 160 cd/m2 for the certification so that the monitor
would be bright enough to softproof in a brightly lit press room.
On 2/11/09 10:55 AM, "Todd Shirley" <email@hidden> wrote:
> On Feb 11, 2009, at 5:28 AM, Bob Frost wrote:
>
>>> If I calibrate and profile the monitor to D50, L*, 140 cd/m2,...
>>
>> I also have a CG210 and CG 211. Have you noticed that Eizo recommend
>> 80 - 100 cd/m2? And that if you use over 100 cd/m2, your warranty is
>> invalid?
>>
>> "The warranty period of the backlight is warranted only if the
>> monitor is used within the recommended brightness of up to and
>> including 100 cd/m2 with a color temperature between 5,000 K - 6,500
>> K................" - Eizo's website.
>>
>> You might get different results if you used them within the
>> manufacturers recommended limits.
>
> Hi Bob
>
> I recalibrated at D50, L*, 100 cd/m2 and GRACoL validation reported
> max dE76=17.2, Avg=3.1, white=0.2
> Just for reference, when I was at D50, L*, 140 cd/m2, I got max
> dE76=15.2, Avg=4.9, white=5.5
>
> So while the lower luminance didn't help the out-of-gamut cyan and
> green overprints, it did bring the average down some and the
> whitepoint dramatically.
>
> I looked up the CG211 at swop.org and there was only one system
> (Remote Director) which certified a CG211 to GRACoL, and their ADS set
> luminance at 160 cd/m2, so I tried that as well and got pretty much
> identical results to 140 cd/m2. All three of these settings got the
> max dE2000 just under 7 which means they would all "certify".
>
> I believe that Remote Director goes with 160 because soft-proof
> scenarios are often required to match a D50 light booth sitting
> directly next to the monitor, and even at 160 the booth would have to
> be dimmed to about 50% to get comparable luminance between hard proof
> white and monitor white. I don't know if you can dim a booth enough to
> match 100 cd/m2.
>
> Many of our CG211s have a GTI D50 tabletop booth right next to them,
> and after extensive testing we have found that the best white point
> match between monitor and booth is achieved with the booth at 50%
> brightness and the monitor set to 5400K, L*, 140 cd/m2. At this
> setting, my Gracol validation reports:
> max dE76=20.3, Avg=3.1, white=0.2
>
> This gets the best match between hardproof and screen. We don't really
> notice too much any problem with the cyans and greens, or maybe we've
> just gotten used to it, but if that whitepoint (and thus gray balance)
> shift, that is very noticeable. So, interestingly, neither what Eizo
> or ICS recommend give us the best results in terms of visual matching.
>
> -Todd Shirley
> _______________________________________________
> 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
--
Steve Miller
Norwood Publishing
1000 Highway 4 South
Sleepy Eye, MN 56085
507-794-8203
_______________________________________________
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