6D + Canon 50/1.8 or D600 + Nikon 50/1.8? Help me decide.

Started Jan 7, 2013 | Discussions thread
roustabout66
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Re: Maybe
In reply to roustabout66, Jan 7, 2013

roustabout66 wrote:

brightcolours wrote:

roustabout66 wrote:


Mako2011 wrote:

roustabout66 wrote:

Mako2011 wrote:

If you start with a file that that only hold 12 stops of scene data you are limited in your output vs the file with higher DR.

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My opinions are my own and not those of DPR or its administration. They carry no 'special' value (except to me and Lacie of course)

Extended dynamic range is great as long as you are talking about transmitted light (computer monitor, television etc.), but why does anyone need high resolution files to display on a computer monitor or TV which is 2.1 megapixels for a full HD 1080P?

Retina display perhaps? Not sure yet

Are you talking about the one on the Mac....13 inch display?

As soon as you print it is a totally different world because you are dealing with reflected light and a piece of paper. A print is lucky to have 8 stops at best so having ONLY 12 stops is of little importance. Moose Peterson talks about 5 stops being more likely in print.

Not true if you want to simulate the real life scene by including details at the extremes. Otherwise, why have any camera that is only capable of capturing 8 stops in RAW. Not every scene can be captured accurately using multiple exposure....especially when movement or changing light is involved. Here the pic shows details at both ends. Not possible if the camera was not able to record that detail due to limits of DR.



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My opinions are my own and not those of DPR or its administration. They carry no 'special' value (except to me and Lacie of course)

I do not care how good your processing skills are, at the end you only end up with 8 stops to put everything into a print. If you have 8 boxes to put stuff into you have 8 boxes and nothing is going to change that. I am amazed at how few people on these forums understand that simple fact. Evidently not many people actually print their images....in which case I still do not understand why anyone needs a high resolution camera.

You do not understand tone mapping .

Suppose on a paper print black has a value of 0. And pure white has a value of 6.

And suppose some image data has a range of -4 to 8. You then shift up the -4 darkest tone to 0, you shift down the 8 brightest tone to 6. The zero tone you would normally get on black, will now be around 2 to 3 or so... What would have been black has been tone mapped towards almost mid tone.

That is what tone mapping does, you remap tones to fit in a smaller DR.

Now why one would want to do that is a little questionable, as images get to have a bit (or a lot) of a flat or contrastless look about them. Above image is a little bit of an example of that, it seems as if there is a haze over it that makes the black look hazy/grey. One would like to dehaze the image (which basically increases contrast).

Not a very attractive image in its tonal qualities, more an image for the memories of the cave than a pretty picture.

This is NOT my post from the not understanding tone mapping on down and evidently was edited by Mako2011 to make it look as if I said this when I did not. What is going on here?

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