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Phocus color calibration

fotografz

Well-known member
Thanks Fotograz,

The solution you give me is good but not precise enough :(
With this one can only approach it visually but not with numbers to obtain exact values one want.

As seen in my attachment:
-First set measure points on white, second gray,4th gray, black patch and the first color to measure (I start always with yellow)

-second, in the Color Info-box you see the values you have at the moment (after neutralizing on second gray)

- In Color Correction-box:
I choose the channel to correct (this should have been Yellow, not Red, but it's just an example). With up/down arrows in the C,M,Y you can adjust until you get the 'right' values for that channel (until red is 230,green 195 and blue 62) in the ColorCorrection-box (see the 5th measure point)

- repeat this for the six basic colors of ColorChecker... becomes a very tydious work if you've several cards to profile. :( :mad:


As everiy one shoot paintings under diff lightings, every shoot starts with a new capture of the ColorChecker in front of the painting; once the card adjusted I copy the new settings on the next shot (painting without CCcard)...

Very tedious !!

But that kind of finesse I don't find in the color wheel of Phocus.

Maybe someone...
Understood.

I never thought about it, but is the color checker the right tool for CMYK adjustments? Or is it universal?

Sounds like you need to start with a Multi-Shot file for better color separation and more faithful colors out of the starting gate?

If you find a precise solution that's easier, please post it.

-Marc
 
D

Domip

Guest
Has anyone looked into this press release from Hasselblad?
Hasselblad announces plan for a new era of Industry
It's about a Phocus calibration guide that has been published.

Frans Rutten
Yes, I did. :eek:
This is a very good way to control colors, but it's very expensive... and also tedious.
But finally Hasselblad does see there's a gap between 'real colors' and their Hasselblad Natural Color Solution (HNCS)
Something to investigate further at the Photokina next month!
 

evgeny

Member
There is a video on Hasselblad TV how to use Datacolor SpyderCheckr Pro ($124.99) to create an H4D sensor profile for Phocus.
Can anyone recommend that program?

Evgeny
 

Professional

Active member
There is a video on Hasselblad TV how to use Datacolor SpyderCheckr Pro ($124.99) to create an H4D sensor profile for Phocus.
Can anyone recommend that program?

Evgeny
Well, i have many gear, so i want to have test to do profiling my HB with ColorChecker Passport or any gray card ones i have, i got busy since years and didn't try to have time to do profiling and having accurate colors if possible, so i may start to go back to do more tests and see what i can get.
 

evgeny

Member
Well, i have many gear, so i want to have test to do profiling my HB with ColorChecker Passport or any gray card ones i have, i got busy since years and didn't try to have time to do profiling and having accurate colors if possible, so i may start to go back to do more tests and see what i can get.
The ColorChecker creates camera sensor profiles for ACR, not for Phocus.
 
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