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by Robert Sabin on Sun Feb 11, 2018 10:43 pm
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FastRawViewer and RAWDigger have created a utility that will split the Dual Pixel RAW files from the Canon EOS 5D Mark IV do increase dynamic range of the highlights about +1EV in a single explosure.
[font=Montserrat, Arial, sans-serif]FastRAWViewer explains how this works:[/font]
Quote:
[font=Montserrat, Arial, sans-serif][font=Montserrat, Arial, sans-serif]Canon 5D Mark IV’s sensor has a somewhat unusual pixel arrangement: each pixel is composed of two subpixels. If Dual Pixel RAW mode is enabled in the camera, the resulting CR2 file contains two images, or two frames: one composite, made from reading both subpixels, summed; and the other is made out of one set of subpixels.[/font]
[font=Montserrat, Arial, sans-serif]The intended use of this arrangement is to enable some extra editing after the shot: because of the parallax between the subpixels, Canon Digital Photo Professional software allows one to preform microadjustment of focus, bokeh shift, and ghosting reduction.[/font]
[font=Montserrat, Arial, sans-serif]However, there is one more possible use for a dual-pixel raw, which is not covered by the manufacturer: the second frame, the one that is made out of one set of subpixels, collects half of the light that the composite frame does, as if it was exposed one stop lower compared to the composite frame.[/font]
[font=Montserrat, Arial, sans-serif]In essence, in Dual Pixel Raw mode, the camera records into one file some equivalent of two shots, bracketed by (approximately) 1 EV.[/font][/font]

[font=Montserrat, Arial, sans-serif]This tool will give the EOS 5D Mark IV about +1 EV of usable dynamic range, making it one of the best stills cameras on the market in that regard.. The advantage to this over bracketing your shots, is there’s no risk of motion blur as it happens in one exposure.[/font]
[font=Montserrat, Arial, sans-serif]As Canon News notes, there will be a slight parallax error, which means a close and far element will appear at slightly different angles to each other.[/font]
[font=Montserrat, Arial, sans-serif]Read more about and download the application here.[/font]
[font=Montserrat, Arial, sans-serif]

Read more: [color=#003399][font=Montserrat, Arial, sans-serif]http://www.canonrumors.com/want-to-increase-the-dynamic-range-of-your-eos-5d-mark-iv-raw-files/#ixzz56rV9pOI2[/font]
[/font][/color]
 

by SantaFeJoe on Sun Feb 11, 2018 11:47 pm
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Please read this for easier reading of your post:

viewtopic.php?f=57&t=246636

Joe
Learn the rules like a pro, so you can break them like an artist.  -Pablo Picasso
 

by E.J. Peiker on Mon Feb 12, 2018 7:45 am
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The post is not legible. You can't cut and paste formatted text without removing the formatting tags. The easiest way to do that with a large amount of text like this is to first paste the text into a simple text editor that is not font or HTML aware and then copy that text into NSN.
 

by DChan on Mon Feb 12, 2018 2:35 pm
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DPRSplit will help pull more dynamic range from Canon 5D Mark IV Dual Pixel RAW files


I could simply bracket when taking the photo and then merge the files with something like Photomatix, right?

I mean, why do I need DPRSplit??
 

by Charlie Woodrich on Tue Feb 13, 2018 5:34 pm
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This might be helpful if you realize after the fact that additional stop would help.
 

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