Datacolor User to User Support Group.

--- In colorvision_group@yahoogroups.com, CDTobie@... wrote:
>
> 
> In a message dated 3/19/06 11:28:31 PM, xun911@... writes:
> 
> 
> > 
> > Yep, check out the "Eagle Lake", it's probably more revealing then 
the 
> > portrait. if you don't have problem with that, you're in good 
shape. I can watch 
> > the water covered with a purplish tint even in my softproof on 
Epsn Premium 
> > Glossy(can't proof with matte, too much out of gamut blue).
> > 
> I very much enjoy Joe Holmes work; by the way Joe has developed 
color 
> management software, over the years as well as small gamut inks. 
He's the creator of 
> the EktaRGB workingspace, in an attempt to capture the EktaChrome 
film color 
> range. But I find many of these images to be artificially 
oversaturateed, and 
> more a test of out of gamut conditions that real photo colors... I 
do love 
> Eagle Lake, however oversaturated; its one of my local shooting 
spots.

I wasn't of course criticising Joe Holmes pictures. I was using them 
as an instant example that showed what I wanted to say about the way 
that my PFP epson matte profile dealt with out of gamut colours. I 
went to his site seeking expertise on colour management. 

Where greens and blues are out of gamut the epson supplied profiles 
seem to bring the colours into gamut by maintaining the brightness but 
reducing the saturation with little shift in hue. My PFP profile 
performs just the same up to a certain level and then sharply darkens 
the OOG colours. In the tree shot, when I soft proof,  half of the 
leaves suddenly go really dark while others are unchanged. Reducing 
the saturation of the greens restores the brightness relationships. In 
the Eagle Lake picture most of the darker blues remain unchanged but 
the light greenish blues dramatically shift to dark blue leaving the 
picture rather flat.

Don't get me wrong here. I guess I have no business trying to print 
colours that cannot be printed on matte paper but I'd just like to 
understand the difference in the way that the epson and the PFP 
profiles deal with OOG colours. Providing I stay within 'natural 
colours' the PFP profile is much better than the epson one.

Brian