EXR Confusion not fully resolved

Started Jan 25, 2014 | Discussions thread
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Timur Born
Timur Born Senior Member • Posts: 4,606
Re: the data is there when it should be, and not when it should not ...

Kim Letkeman wrote:

Not really hidden ... if there are two halves stored, then the converter follows the dynamic range setting to choose its algorithm ... 100 is binning if M size was shot and create a large image if not

L and M both use two stored halves and can use DR 100, that's why the EXIF of even L sized images lists the M size (half sensor size x 2 frames) resolution. There has to be an indication in the raw file that tells the raw converter whether the shot was meant to be L or M and develop accordingly. The source data is the same anyway, while the development is different (EXR HR demosaicing vs. SN blending + Bayer demosaicing).

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