On Sat, Feb 20, 2016 at 1:22 PM, Marie-Noëlle Augendre
<mnaugen...@gmail.com> wrote:
> However, pictures seem to have some real vignetting: see 
> https://lh3.googleusercontent.com/-djMhsJelGiU/VshkmYytA0I/AAAAAAAADi8/JJumqTCJpBE/s2048-Ic42/20160220_darktable_002-1000px.jpg

These zoom compacts often have lenses that don't cover the full frame
at all zoom levels. Since this is a raw we always display the full
sensor image. You can just crop to taste. If you want to make it
automatic just add a crop preset auto-applying based on the zoom
setting.

> In other softwares, such as Digikam here: 
> https://lh3.googleusercontent.com/-XlvSUg2Q0vQ/VshmqEmYzKI/AAAAAAAADjU/7GW6vEiFu0A/s2048-Ic42/20160220_digiKam_001-1000px.jpg
>  or the RAW viewer I use on Android, there is no vignetting but the image 
> appears a bit smaller, as it had been cropped,
> Curiously, the sizes in pixels are the same in both darktable and Digikam: 
> 5632 x 3710 pixels, and a bit smaller on Android: 5636x3693.

Those are probably not the same image then. The digikam image is
probably one that's zoomed in more so the crop is not needed. The
alternative would be digikam doing an auto-crop and then scale up but
I doubt they do that.

Cheers,

Pedro

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