Ysarex Loc: St. Louis

I appreciate that you could see it that way since you can't even do it.

selmslie Loc: Fernandina Beach, FL, USA

You won't even use your UniWB settings to see how they help you with your exposure.

Is that because you already know they won't help?

Ysarex Loc: St. Louis

And when's the last time you followed me around to see how I use my camera? Got pictures?

selmslie Loc: Fernandina Beach, FL, USA

Wouldn’t it be simpler if you just described how you use UniWB to set your exposure?

If you don’t we can surmise that you can’t use it.

Ysarex Loc: St. Louis

What's the point? You can't even set it up.

You've already tried that stunt on me. Scotty: "You can't explain it and you really don't understand the topic at all. You can't even get past step #1." Where'd that get you?

Who can't get past step #1?

selmslie Loc: Fernandina Beach, FL, USA

So now that you are convinced that you got through step #1, was it worth it? Where did it get you?

You won't do step #2 because you are afraid it will lead you to the same conclusion I came to in step #3.

UniWB simply does not deliver on its promises. That's why it never caught on.

selmslie Loc: Fernandina Beach, FL, USA

I updated the plots to include some more WB settings.



Notice that in all cases there is a vertical shift in the placement of the green channel. Only Fluorescent falls below Daylight. I didn't include Incandescent because it is identical to Daylight with the color temperature being addressed by the shift of the blue and red channels.

As with all of the others (except the one I labeled UniWB) reach their maximum value at the same time as the raw line so they are better predictors of the raw limit.

But the blinkies are also better predictors and easier to work with than any of the histograms because they tell us where in the image the raw file is vulnerable.

Ysarex Loc: St. Louis

The satisfaction of a job well done is always worth it. Sorry you can't experience the same satisfaction and set UniWB on your camera.

selmslie Loc: Fernandina Beach, FL, USA

You have only completed #1.

You are not done until you accomplish #2 and #3. They should be a piece of cake unless you are hiding something.

Ysarex Loc: St. Louis

Which is more than you've done.

selmslie Loc: Fernandina Beach, FL, USA

No, I completed #2 and #3. You are afraid to do that.

Ysarex Loc: St. Louis

Since you haven't been able to complete #1 and since we already know you handed out faulty instructions. I'm going to consider whatever you think you've done in terms of your #2 and #3 as laughable bull crap. And as for what you think I've done -- you have no clue except of course that you know I can do what you can't which is set up UniWB on a camera.

selmslie Loc: Fernandina Beach, FL, USA

Here is #1 completed.

Uniwb2 - Close enough?

And the results are even worse.

The orange line is from the revised UniWB2 setting.

All of the other WB settings are better than UniWB where it really matters, at the extreme right end of the range.

UniWB is a total failure. So are you.

You really don't understand this topic after all.

Ysarex Loc: St. Louis

And it only took you two days!

For you on your Z7.

Unless I missed the part where you explained why every camera model by Canon, Pentax, Fuji, Panasonic, Olympus, Ricoh, Leica, etc. all work just like your Z7. For example tell me do you know for sure that the live highlight clipping warning (zebras) on your Z7 works the same as it does on my SL -- wait a minute, you don't have a live highlight clipping warning on the Z7. You have to chimp to get highlight warnings. And the live histogram is just a worthless luminosity histogram. Well crap I wouldn't bother with UniWB in your case either. But if I have a live highlight clipping warning that's responsive to the WB change that's a different story -- makes using UniWB so much faster, easier and productive.

So now we know:
It takes you days to set up UniWB -- no wonder you don't like it.
You still handed out faulty instructions to everyone.
And you don't like UniWB on your Z7 which is understandable, but in no way can be considered to extrapolate to other cameras that work differently and support features your Z7 lacks.

If I were you I'd give up messing with UniWB since you're so bad at it and you don't have the right camera anyway.

P.S. I never bothered setting up UniWB on my Z7 either -- figured that out the first day I had it.

selmslie Loc: Fernandina Beach, FL, USA

I guess you didn't bother to look at this post where you would have seen:



This is not my first rodeo.

Only my A7 II and iPhone have live Zebra warnings but they show up at the same time as the highlight warnings do later. But the highlight warnings work the same for the Sony, Fuji and iPhone as they do for the three Nikons. The difference is that you need to test them because some of them leave you less space between the warning and the upper limit of the raw file (Fuji and iPhone) or more (A7 II).

All of the camera histograms are worthless, even the color versions, because they are too small and you need to zoom in to a particular part of the image to get more information. That's more effort than it's worth. The blinkies are much easier to work with, especially if you don't keep changing WB settings. Auto WB would be a problem.

If you work with different white balance settings you need to be aware of how they behave for each one. They will show up sooner for Daylight than they do for UniWB. As I have already demonstrated, the UniWB histograms in the camera are not reliable since they might suggest that you add more exposure even after you have reached the raw limit.

My instructions were good enough for a rough test, a proof of concept. The target was right for the A7 II and a good place to start for the other cameras. As it turned out, the final UniWB setting on the Z7 produced a result that was even more dramatically wrong.

It took less than 15 minutes to come up with a better target for the Z7 following the method described in UniWB and ETTR: the Whole Recipe which is much simpler than any of the other links suggested here.

Figured out what? That it wasn't worth the trouble because you don't really use UniWB?

You are still two steps behind me. You haven't completed #2 and #3 because you would have to admit that I am right.