EOS-1D X Mark II Dynamic Range [CR2]

Mdshirajum said:
neuroanatomist said:
I guess those of us who are anti-DR will have no interest in this camera. ::)

Can you pls let me know why there are anti-DR people? Isn't it something better to have?

It doesn't hurt, it's just that it usually doesn't help either, certainly not at a level commensurate with the level of talk about it.
 
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I wonder how they would choose to encode an image with more than 16 stops of DR.

There are really two ways.

One is to use a linear encoding with more than 16 bits.

The other is to use a non-linear (logarithmic) encoding the way the new Lightroom HDR merge works (16 bit floating point for about 30 stops).
 
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Mdshirajum said:
neuroanatomist said:
I guess those of us who are anti-DR will have no interest in this camera. ::)

Can you pls let me know why there are anti-DR people? Isn't it something better to have?

He is referring to the DR is not everything PPL.

The argument goes something like this...
DR PPL: "Sony and Nikon have more DR at ISO 100 and you can shoot in the dark with them and bring up the exposure and see a fantastic image.

NON DR PPL: Take a properly exposed picture and leave me alone with your DR BS!
 
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neuroanatomist said:
I guess those of us who are anti-DR will have no interest in this camera. ::)


If Canon is class-leading = essential feature
If Canon is class-lagging = it's about the whole system, silly! The image sensor doesn't take photos for you!!!111 LOL


Finally DR will be an essential figure again!


I just hope they put it in a smaller, cheaper body. I have no use for perma-vertical grips.
 
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dspry said:
ISO and DR are commonly talked about here as if they are discrete measurements, but they're both effects of signal to noise ratio. DR critically tracks how little signal can be imaged before noise becomes a problem, and as the problem of noise is abated, useable DR increases. As ISO basically correlates to the amplification of insufficient signal, DR is largely what's observed when ISO performance is measured.

Unless I'm ignorant of an important distinction between the two, it doesn't make sense to say that DR improves despite ISO performance.
His statement left out an important detail:

Those who sing praises in honor of EXMOR sensors, only care about dynamic range at ISO100. These people do not care if EXMOR loses the advantage of DR in ISO1600 and above that.
 
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Lee Jay said:
I wonder how they would choose to encode an image with more than 16 stops of DR.

There are really two ways.

One is to use a linear encoding with more than 16 bits.

The other is to use a non-linear (logarithmic) encoding the way the new Lightroom HDR merge works (16 bit floating point for about 30 stops).
or save as an 18 bit (or more) RAW file :)
 
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neuroanatomist said:
It is – and always has been – about the whole system, silly...
To you? What strobes do you use? Oh yeah, Paul C Buff. What tripod? Oh yeah, Really Right Stuff. Shall I continue, Mr. Silly System? I can use all of my L glass on a Sony body. They do not need the loving Canon body touch to do their magic.
 
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Don Haines said:
Lee Jay said:
I wonder how they would choose to encode an image with more than 16 stops of DR.

There are really two ways.

One is to use a linear encoding with more than 16 bits.

The other is to use a non-linear (logarithmic) encoding the way the new Lightroom HDR merge works (16 bit floating point for about 30 stops).
or save as an 18 bit (or more) RAW file :)

Isn't that the first one I said?
 
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quod said:
TeT said:
NON DR PPL: Take a properly exposed picture and leave me alone with your DR BS!
That's a great philosophy if you shoot in a studio or take portraits with flashes that can overcome the sun, etc. Some of us do not.

Some of you should.

I have done experiments where I compared using high DR to using fill-light, and fill-light essentially always wins even when the tone curves are equalized in post.
 
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quod said:
TeT said:
NON DR PPL: Take a properly exposed picture and leave me alone with your DR BS!
That's a great philosophy if you shoot in a studio or take portraits with flashes that can overcome the sun, etc. Some of us do not.

Apparently some of us live in a world where the EV difference between the sun in the frame and detail in pitch black shadow is greater than 11.5-stops but less than 14-stops. The rest of us live in reality.
 
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