So what happens if you say, shoot a macbeth against a gray background, from a tripod in a dark room? 20 shots, each 5-10 seconds apart, fixed WB, manual everything? Then, use an eyedropper tool and measure the patches / background to see how much drift you're getting. Since it is a slow shooting process 10s apart (just because the strobe recycles doesn't mean that it'll push out correct color, unless you are shooting Bron or Profoto), the strobe should recycle fully and with no change
With strobes, I've had problems with most lights shifting +/-200K-400K in the past and that's why the high end lights are around. They are more accurate shot to shot. I am very color critical since slight casts and differences make the difference in the shots I do. The tints you show would be enough to drive me nuts. But, I shoot a MacBeth for every frame and I definitely don't shoot any PCB lighting products. Was loaned some for extra lights and gave them back quickly as they were trashing every shot sequence with inconsistencies. I know that the Einstein's are supposed to be accurate, but I still prefer Bron for true accuracy.
Ambient is whole 'nother ball of wax with the changing environment (the movement of a tree in the breeze has caused a reflected shift of color on subject's I've shot that made a few hundred K difference).
I use a Minolta Color Meter to do color temperature checks when necessary and dial into Kelvins - and still shoot a MacBeth in every shot when necessary. I've never had skin tone problems with RAW - especially in studio. The ColorChecker Passport has the patches for warming or cooling tones. The trick is to shoot it once at the beginning test shot, then get the temperature like you want it. Since the lighting doesn't change, it should be consistent shot to shot. So, I would automatically apply those settings to all subsequent shots until a lighting/set change and do it all again. There are reasons that tools like Capture One and Lightroom exists - if you don't "like" LR, you should quantify why and learn to work around it. It is a much better tool than Aperture for studio shooting, especially in tethered configuration. I can see exactly what each shot looks like a second after firing on a large monitor next to me that is color accurate and calibrated.
Very informative, thanx! Unfortunately, I work in a completely different way. I am not as technical or picky as you are.
I have been using PCB flashes for over 10 years and never had a problem.
They might not be Profoto but they work for me.
I have one camera and one lens. No backups or filters or polarizers.
I don't shoot tethered. I work really fast, hand held and moving around a lot. My girls don't pose, they move freely but listening to what I want them to do. When I see something I like, I shoot it. I don't have time for elaborate studio setups, and my clients don't care for delays either. I work alone. No assistants or any help and just the model and me. Nobody else in the studio.
I setup my 2 or 3 lights, do a couple of test shots, and if I like it, we start shooting. That simple. No color meters, no color charts...
My problem is not the flashes or the way I work or the flash brand I use. I never had this problem with my previous cameras. There is something wrong with my 1D X and I just want to find what it is.
Why blame it on the photographer when it could be a defective sensor or processor... Nothing man made is infallible.
I will call Canon and send the camera to be checked on Monday. We'll see what happens.
As far as LR. I love Adobe products. i've been using PS since 1993 but LR just doesn't do it for me.
I want to like it, I tried it, I even downloaded the latest trial version but it just doesn't work the way I like.
Aperture is so much faster at displaying images, comparing, smart albums... I love it... and since I've been using it for years now, I am comfortable with it. BWT, I am using version 3.2.4, not the latest 3.4.5 which I hate. All those grey icons are terrible and there are video glitches on dual screens... Apple should step up their game but it still works for me.
We will see Monday at the WWDC... Hopefully they haven't forgotten about us Pros and they will introduce a new Mac Pro and Aperture 4.0...
Again, thanx for sharing the way you work. I wish I had more time to be as precise and meticulous as you...
All the best,