Luminous Landscape Forum
Raw & Post Processing, Printing => Colour Management => Topic started by: Eric Brody on May 23, 2021, 02:41:19 pm
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I've had my Color Checker Passport for many years, mine is 11 years old.
Should it be replaced?
I don't leave it out in the sun to fade, in fact I probably don't use it enough.
Thanks.
Eric
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What are you using it for?
Probably nothing to worry about.
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You could measure the patches with some spectrophotometer and then be good for many years since the colors hardly drift.
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I think since the colorchecker passport is not cheap and certainly the replacement color card inside is not cheap that since we can now product prints that last 100+ years that the color cards should last for 25 years plus. After all the passport itself is merely plastic and card/paper? Its the software you pay for.
I must also admit to hardly using mine.
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After all the passport itself is merely plastic and card/paper? Its the software you pay for.
The Passport is plastic, the targets are no different in construction than the ColorChecker.
The software is free. The targets are not.
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Software is free? What world do you live in? Other than one where you seek to lecture all others in a rather abrupt manner?
As a former writer of software I can assure you software is not free and just like any other intellectual pursuit deserving of payment.
However, if you are not good at expressing yourself and mean software has no ( or little) replication costs you are correct. Once created (by a person) it can be distributed very cheaply even for free if a charge is made for some other element.
It is the software that does the smart work here and produces the camera profile. Even the plastic must be very cheap though I suspect the quality control is extreme to ensure accuracy? The colour patches are simply numerical RGB values interpreted by some manufacturing process.
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Software is free? What world do you live in?
One in which facts exist and some here can't research or understand.
BOTH X-rites software and Adobe's software that can create DCP profiles are free. There is no fee (look up the definition of 'free (https://www.merriam-webster.com/dictionary/free)'), the download is free. You DO need to purchase a target:
https://digital-photography-school.com/adobes-dng-profile-editor-make-custom-camera-profiles/
Oh, and did I mention the software is available absolutely FREE from Adobe?
Free download from X-rite:
https://www.xritephoto.com/ph_product_overview.aspx?ID=2572&Action=Support&SoftwareID=2215
Even the plastic must be very cheap though I suspect the quality control is extreme to ensure accuracy?
Are you asking me to again verify your incorrect assumptions? You suspect indeed. Do you actually own the product sir and have you actually measured the targets (forget the plastic, it simply holds the important target patches)?
If you have only imagined it, you haven't experienced it.
As a former writer of software I can assure you my software too is free:
http://pixelgenius.com
I'm sorry the facts have ruined your faulty opinionated false narratives. ;)
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Software is free?
Yes, it's free. The software works with any colorchecker target, not just the plastic cased passport product, even older ones brought before Passport was released.
Probably my least favourite dcp profile creation software, but it is free.
For the OP if it's been kept shut and dry apart from the few minutes in use, it's highly unlikely to have deteriorated.
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Lol, good to see I got to you Andrew. Perhaps you will ameliorate your arrogance and forum bullying and STILL provide some help?
I did expect a toys-out-of-pram response but you excelled yourself.
Keep up the good work but step off your self-appointed pedestal and try to be more mannerly.
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Lol, good to see I got to you Andrew. Perhaps you will ameliorate your arrogance and forum bullying and STILL provide some help?
I did expect a toys-out-of-pram response but you excelled yourself.
Keep up the good work but step off your self-appointed pedestal and try to be more mannerly.
That's your reply after being proven so wrong by so many here? The response you got was of course factual.
And you are who, afraid and hiding behind an alias?
You believe you helped the thread with disinformation and more questions about a product you don't understand.
Seems it is you who should step off your self-appointed pedestal of posting ignorance. ;)
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I must also admit to hardly using mine.
Helps to actually own a camera and understanding about the actual software Frans.
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Helps to actually own a camera and understanding about the actual software Frans.
Eh? That reply came from IPDOUGLAS, not me. Did you take your pills lately?
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Eh? That reply came from IPDOUGLAS, not me. Did you take your pills lately?
Ah, just showing up now since your last post (https://forum.luminous-landscape.com/index.php?topic=86369.msg1217003#msg1217003) on May 6th; proof enough the two are linked at the hip. Thanks Frans. ;)
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Ah, just showing up now since your last post (https://forum.luminous-landscape.com/index.php?topic=86369.msg1217003#msg1217003) on May 6th; proof enough the two are linked at the hip. Thanks Frans. ;)
More gibberish. Just go see your shrink.
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More gibberish. Just go see your shrink.
Get yourself a camera yet Frans? Be a good hobby for you. :P
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Well. Let’s refocus the subject. no problem to analyze this colorchecker, recover the data and reintegrate them into the software ColorChecker Camera Calibration. I already did.
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I find Andrew Rodney's posts hysterical.
He sounds a sad individual who has to qualify himself with a now 12 year old publication that is little read.
I agree with Hans ... keep taking the pills .... or at least get some that work and please stop being childish.
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I find Andrew Rodney's posts hysterical.
I found your incorrect dismissal of two free software products sad, I suppose that's the difference between us.
He sounds a sad individual who has to qualify himself with a now 12 year old publication that is little read.
Yes; I found your incorrect dismissal of two free software products sad.
“Facts do not cease to exist because they are ignored.” ― Aldous Huxley
As someone hiding behind an alias, I suppose you can't tell us about any of your publications. And how about that software product you state, without evidence you wrote. Hysterical indeed.
I agree with Hans
And Frans?
Without stupidity, we would have no one to laugh at. Thank you for your contribution to the forum.
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Lol, you sound like a spoiled child?
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Lol, you sound like a spoiled child?
The absurd is the last refuge of a pundit without an argument.
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This topic is about a colorchecker card, right?
I am not interested in who (dis)likes who...
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This topic is about a colorchecker card, right?
Yes, at least it started that way until Reply #4 where massive assumptions on the topic developed.
There are a number of ways to verify the ColorChecker, the best way you specified in post #3 before the topic when off the rails.
Further, there's a great wealth of information about it here:
http://www.babelcolor.com/colorchecker.htm
The part about "New color specifications since November 2014" is notable.
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I'm the OP, thanks Kers, I'm with you. This ad hominem stuff does not belong here or anywhere else on this usually helpful forum.
Thanks Andrew for getting back to the original question. I'll check out the reference you cited.
Eric
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I've found the various ColorChecker cards to be reasonably stable over time. The biggest problem I have using them is that the spectral response differs on some colors from that of CYMK printers. In particular A2, A3, and F2 (Orange, Blue, and Orange-Yellow). These are the colors I see the most metameric failure on with cameras and scanners. Haven't really had much of an issue with change over time with any GMB or XRite Colorcheckers. They have been quite stable.