FS100 ugly edges! what is that?

Agreed. I would say the color fringe is caused by the lens. Try a prime lens - the best one you can get hold of (master prime preferbly:) I bet it will make a difference.
Secondly that sid, the codec migt be amplifying the error caused by the lens. Try the solution mentioned earlier of either recording an uncompressed signal (get a atomos ninja or a BM shuttle) Or try watching it on a good monitor.
That's the technical side of it. Lighting the subject, putting nd on the windows and so on, would be a good approach in controlling a scene that holds alot of challenges - for any camera.
 
Thank you all for help. I'll do some tests and I'll post my results.

This was an artistic choice to make it more contrastfull and more dramatic.
 
I hate that term "Operator Error" escpecially here where the operator was purposely trying for this particular look. I've seen many videos, for example, by Hunter Richards who shoots similar stuff like this on HDSLRs and they look spectacular.
 
That is just chromatic aberrations caused by the lens. Stop it down or get a better one. Chromatic aberrations look bad in 4:2:0 color space because slight color mismatches will get boosted to 4x the size. Hence big blues/reds in aberration areas.

So, either get a lens that is better in that regard or watch out for them while shooting.
 
Ian-T said:
I hate that term "Operator Error" escpecially here where the operator was purposely trying for this particular look. I've seen many videos, for example, by Hunter Richards who shoots similar stuff like this on HDSLRs and they look spectacular.
Click to expand...

I shot a ton of blown out stuff with the FS100. - it´s absolute doable and can look great, if you want that special look.

No offense here, but you have to know the basics of the trade, and understand how your tools work.

A lot of folks here expect that the camera does everything, an experienced DP learns over the years, - right out of the box .
DSLRs actually do that to some degree, by limiting your choices.

If that´s what you want, and if you can live with the cons - a DSLR is the better nobrainer.

Personally I prefer a brainer camera though.

Frank
 
I'm going to go with Chromatic Aberration as well, and tell you that DSLR's make no difference on this. I was using a Nikon 50mm F1.8 lens on a 7D and I stopped using it because everytime I had a shot with high spatial frequency (like blown out window next to relatively dark interior) the purple fringing would be out of control. Switched to a Sigma 50mm F1.4 and no problem, at all.

While highlight handling can be an issue, I personally reigned it in by reducing the saturation out of the camera. I think the colors, like the AF100, are too rich coming off the sensor. This gives me a bit more headroom before a channel blows out on a highlight.

That said, most blowouts can be easily tamed in post. Some color correction can fix just what the internal processing could do at those top ends. I've seem MANY people here fix up their shots with relative ease. It's just learning how to do it.

However, getting rid of the CA should be your first step.
 
Either gel the windows, compensate exposure more, or fill light your talent. That kind of hard edge is going to cause problems on a lot of cameras, not just the FS100!

(but I will say that it's far easier to get these kind of artifacts with this camera, I thought it was CA at first as many have stated but it's not entirely)
 
It doesn't matter what it is, that's a 10 second repair job in post anyway. Simply isolate the fringing and desat or adjust the hue to blend in with the background.
 
It's not just CA. I've seen the same CA with a Sony F3 using the same lens... but the F3 doesn't give you that blocky mess at the edges. You just get purple and white - as expected from from an overexposed shot. The FS100 adds some kind of odd aliasing that's there regardless of whether you record internally or externally. It's a processing issue with the camera.

All of these "learn your craft" remarks sent to the OP were a little harsh IMHO. Sure it was overexposed but it doesn't negate the fact that the FS100 treats that situation less gracefully than other cameras.

The ways to minimize this is to control the light (which in documentaries isn't always possible), stop down the lens a tad, and/or reduce in post with a desat pass. It's still ugly though, and other cameras don't make such a mess of it.
 
Ultimately this issue (among others) caused me to sell the camera. I'm getting a C300 from Canon (that's a big jump but I have other reasons as well).

Selling a bunch of stuff actually... in the marketplace forum.
 
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