Ok, I obviously don't know what I'm talking about.
Actually it's not about accuracy in terms of what you get out of the raw processor. You can use the Macbeth as an accuracy test as I pointed out (my display and my print look the same). You can use it to white balance in different ways which again, isn't about accuracy. It's a visual reference for one. It's something you can include in shots where the illuminate may be on the odd side suggesting a way to white balance or build a DNG profile depending on your goals. You don't have to use any such target to get a pleasing image. It might make getting there easier, might not. (unquote)
Yes, ok, here we go (sorry) . The MacBeth accuracy test is still a mystery to me - but (accepting I'm opening myself up to a ton of ridicule) - the point I have been stuck on is:
- if the image you print is different than the image on your screen - HOW do you know if its the screen or the printer.
I downloaded your image from your website as a Jpeg. I then imported it into Photoshop CS5 - and printed my image . The fact that I'm viewing your test image on my software means I'm perhaps seeing it differently than you because of the software.
Anyway, the colours on the screen within CS5 (I used the internet sRGB workspace) were not 100% match for the colours on the print. Some (memory here but I still have the print out) were significant - in other words blue instead of green. Some were tonal variations (lighter or darker hues of the same colour).
The stupid question of the day is: How do I know what to fix? Or does it matter - meaning, the point is not which one is wrong, the point is both agree.
I still have the print out which was done BEFORE x-rite calibration. I then went out and bought x-rite computer monitor calibration and recalibrated. Viewing the image on screen against the printed one (using Canon profile for the paper I chose to print it and not a custom profile since I don't know how to to that) - it was still different.
I think at that point I abandoned ship
because my troubleshooting skills stop there.
I don't know what I don't know. If there is an obvious or glaring stupid thing I'm doing - feel free to point out. I also realize I may be diverging off topic, and if this is the case, apologies. I will accept re-direction to another thread /forum if that is more appropriate.
Now on Passport - I see. I confess, I just am blank because as you stated, its a pre-requisite to creating a DNG profile - and I'm not there yet. It is I think therefore important for me to start with learning how to create a DNG profile and until I do that I cannot appreciate the value of this tool.