There's a difference between how to and why. RobC misinterpreted what K was and instead of getting into a unsubstantiated he said, he said discussion, I went to the source material.
You were specifically asked not to
... flare theory which no one is interested in.
I miss Jorge too. A real piece of work but there was some residual value to his input.
When was the last time you used a gray card, Bob... or worried over a K/C constant?
plenty more where they came fromBoy oh Boy - this is unbelievable - I have actually learned some new insults I can use on a daily basis..
I pop on this thread every once and awhile to learn a bit , boy you densitometry geeks can really go at it.
This is bringing me back to the days of Jorge- who I do miss.
Could you include some in French for me.. I have a show in Montreal next month and if someone doesn't like my work I want to be prepared.plenty more where they came from
Bob, the example with flare that I gave shows how 12% scene reflectance is the middle of the Illuminance range at the film plane. Part of the topic is what is the middle, and that addresses it. I also quoted Jack Holm as a source to support the idea.I think years ago as I pretty much use the same materials so when I set up I balance in my process.
I think I understand the practical applications of flare and its effect on film.
For my Lambda work I am constantly balancing in a 21 step wedge to laser output so I can stay in process.
In Photoshop I am always adjusting curve shapes - but I don't believe its useful to this discussion.
I remember Jorge calling me up on a claim I made about how much silver I recovered in a year.
John Callow and I also asked him to participate in the first APUG conference held at my shop- he decided against itl
thanks not sure if that will fly in Montreal but will give it a go.Say all the same stuff, just wear a beret!
You've got the intellectual capacity of a fart. You still think this topic is about you and what you say. I have repeatedly told you its meant to be a simple method of undertstanding what a grey card really is and what it means and yet in your moronic and delusional state of mind you think I'm in the slightest bit interested in proving you right or wrong? You are sick or a complete arsehole. I thought the latter but I now begin to think both. No, on reflection I think an arrogant and delusional little shit who hasn't offered anything to the discussion except confusion.
Keep going and you'll get me kicked off the forum...
Even if I take the same grey card and spotmeter, and the same incident meter, and I take readings with both in different situations,
- sometimes they agree
- sometimes they are about 0.3EV apart from agreement
- and I have even gotten 0.1EV difference and 0.2EV differences, too
...so the debate outcome is not even consistent from moment to moment, given the above outcomes.
The only thing which is proven is "your results can vary".
But one cannot dispute that midtone grey (18%) is mid way between 'black' and 'white' (and look at the Tone Curve histogram from my earlier post to prove this to yourself).
You can translate yourself.Could you include some in French for me.. I have a show in Montreal next month and if someone doesn't like my work I want to be prepared.
I bought my first and last grey card when I was around 20, that's 30 years ago <snip>
Yet, I do consider all reflected light meters to be calibrated to a shade of grey, and I consider interesting and relevant to know which shade it is. Before attending this very informative and very polite forumI would have taken that light meters are calibrated to an 18% grey as more gospel than gospel itself. In my real photographic life I use spot meters to place the high light and I don't track middle tones [transparencies] <snip>
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