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Histogram not reading right?

Since owning my CFV, the histogram has been reading incorrectly, or so I thought. It would indicate no right clipping, but when I would open the image in any RAW converter, there would be right clipping, and lost highlights. As a practitioner of Exposing to the Right, this just didn't sit well with me. I began to compensate by closing down a stop or so when the histogram looked like what I wanted - just the opposite of what I wanted to do with exposing to the right.
Well, today I found out what the problem is, and thought I would share this piece of gem information with you.
There is a new article on The Luminous Landscape by Ray Maxwell, and I have included a link to it below. The "problem," as explained in the article, is that the Contrast level of the camera, or digital back in my case, should be set to minimum. If not, your camera histogram will differ from your RAW converter histogram, which is exactly what I was experiencing. The higher you have the Contrast level set, the more "off" your camera's histogram will be.
I went in to the CFV, and saw my Contrast was set to a default of 5. I set it to 0 (zero), and son-of-a-gun if it didn't work. Now my Camera histogram matches that of FlexColor and ACR, and I can now trust what the reading indicates. Oh, and yes, the displayed image on the CFV back is flatter, but that's unimportant compared to getting an accurate histogram reading.
So now I can expose to the right to the max, without worrying about highlight clipping. Yay!!
Here's the link to the article for anyone interested in this revelation.

http://www.luminous-landscape.com/tutorials/right-hista.shtml
 
Etr reading histogram

Michael

That sounds very interesting and I will carefully check as you have done .
Thank you very much for that really good hint .

Jürgen
 
Jürgen reported he followed Michaels suggestion and agrees fully with this idea.
Due to a temporary problem with internet he is unable to react now with his findings.

With a bit of luck the internet problem will be solved before the weekend.


Paul
 
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