Dynamic Range -- what it is, what it's good for, and how much you 'need'

Started Oct 17, 2011 | Discussions thread
Great Bustard
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Badge of honor.
In reply to Rriley, Oct 23, 2011

Rriley wrote:

I've been busy working on the discrepency between DxOMark's DR measure and Imatest's. As it turns out, DxOMark measures what DR is defined to be, and what I've said all along, whereas Imatest measures the DR of a processed photo:

you knew NOTHING about it
you had to ask for help on it
you were clueless as to what was going on and this is more pretence

I knew nothing about Imatest, I asked, I got the answer. And when I don't know something, I ask, unlike parading around like a complete effing idiot like you and your fellow entertainers.

Case in point:

http://forums.dpreview.com/forums/read.asp?forum=1018&message=39658713

Yes, that's basically correct, although Imatest has an additional problem (at least in the versions I have seen) where it does not properly compensate for the the clipping of the negative going noise excursions as the grey patches approach black, which I cover in another post. This, as much as anything, is likely why Imatest measures higher DR than what DxOMark does.

i knew enough to ask the question

But I knew enough to get the answer. Now, do you know enough to get understand the answer?

http://forums.dpreview.com/forums/read.asp?forum=1018&message=39658460

Well? Do you?

the 'fool' here didnt even think to ask it

Because I did not know that Imatest gave different results than DxOMark.

and somehow you think that puts you in front

Yes -- in fact it does.

fraud

And yet, I was right all along, whereas you were just fishing for some way to discredit DxOMark, and show the fool once again.

It's one thing to be ignorant -- I was ignorant about Imatest, and am getting an education in the link above. It's quite another to parade your ignorance as a badge of honor, but, well, that's what makes The Entertainers' posts so entertaining, I suppose.

Yeah -- that.

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