Hi Roumano,
I actually haven't tried your presets yet -- will do, and report whether i
see any difference or not. But it makes sense that they should be behaving
similarly :)
My shots aren't perfect either, i'm planning on trying once again. I'm
waiting for a sunny day to get more contrast and clipping. And sun doesn't
appear often in Germany :)
...
emre
On Mon, Dec 17, 2012 at 7:50 PM, Roumano <[email protected]> wrote:
> Hi Emre,
>
> I have take the first shoot from the 550d, but i known my shoot are far
> from perfect...
>
> I have planned to improve this, but you pass me ;)
>
> I have compiled a test version with both preset, i can't see any real
> difference between them. (tested on iso 800 1600 & 3200)
>
> johannes, can you look if this are better & then use it if needed ?
>
>
> Tkx
>
>
>
> Le lundi 17 d�cembre 2012 à 14:33 +0100, Emre Meydan a écrit :
> > Hi,
> >
> > I know somebody else was working on a profile for this camera, but i
> > also wanted to try it myself.
> >
> > I had to make three different sets of shoots before i got a nice
> > profile. What i tried last (and what seemed to work) was to shoot the
> > window of my room: the sky was overexposed, while the shadows in the
> > room provided underexposure. I also exhaled on the lens for a bit of
> > extra-blur :)
> >
> > I'm not sure if everything is as it should be: looking at the graphs,
> > the red channel is not clipped, and for iso 400 & 1600 the blue
> > channel also doesn't seem to be clipped (though close).
> >
> > But after initial testing it seems to work very well. Up to 400 iso
> > the results are really good. With higher iso the profile removes fine
> > noise, but larger color blotches remain -- as other people noted. I
> > guess they require a different kind of noise reduction.
> >
> > One small problem i have is that, in the presets section i see two
> > different sets of presets: half of the presets are named "Canon 550D",
> > but selecting them doesn't change a thing (even though darktable seems
> > to calculate stuff when they're selected). The other half are simply
> > called "test" and they are the ones that work.
> >
> > You can get the resultant files here, and check if anything is wrong:
> > http://emremeydan.com/tempor/550d-noise_01.tar.gz
> >
> > Included is a camera-jpeg of 400iso, to show you what i used for
> > profiling. I can also send the raw files if you need them.
> >
> > Thanks a lot for the hard work!
> >
> > ...
> > emre
>
>
>
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