EXR Confusion not fully resolved

Started Jan 25, 2014 | Discussions thread
Trevor G Veteran Member • Posts: 6,576
Re: Will EXR Confusion ever be fully resolved?

Timur Born wrote:

Trevor G wrote:

I was dumbfounded when I found out that they took two exposures and combined them, in-camera, as images.

If by "as images" you imply that the combination happens after demosaicing then you are likely wrong. The whole point of using the special EXR filter pattern is to combine both exposures before demosaicing.

Really?  How do they do that?

Where do the 2 DR frames come in, then?

1) That the X10 has more dynamic range (whatever that means) and better IQ than the X20 - it does not.

We should rather talk about camera sensors than cameras here. The X20 has a tendency to underexpose its JPGs and that's very problematic for dynamic range and image quality, so on camera level the X10 may regularly get better IQ even with worse sensor.

I have never seen that.

In essence I have seen images at DR 100 that were exposed and processed by the X20 as if higher DR was set up. As a result the shadows and mids were noisy and blurred away by noise-reduction.

I have never seen that.  In fact, the opposite.

Did you ever see this thread?


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Trevor G
Silkypix tutorials at: http://photo.computerwyse.com

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