Is this amount of aliasing and moire normal?

I'm also confused here. The only weird thing i saw was the computer screen through the small gap, but you'd never actually film that... after watching the second video i do see the moire you were talking about, what was your detail at? it seems in extreme cases the fs100 has some moire issues but i mean think if that was a 5d...
 
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I see aliasing and moire on the brick roof centre right in the second clip. I've not had aliasing that troublesome before, and not had moire, but you may have hit an unlucky harmonic. As for the first clip, I see a bit of aliasing around the light fitting over the table. Hmmm. Yes, I'd be a bit disappointed in that. OTOH, I've been working with some Sony Z1 HDV footage last night, and I'd take the FS100 footage, 'warts and all', over many other cameras.

It's almost as if there's some agressive sharpening going on in there. For me it's early and the eyes aren't quite warmed up, but most of the scene elements are fine, but some seem to look sharpened - the vase, the edge of the speaker, in fact, anything with a very high relative brightness.

If I had another coffee, I might remember something important about crispening settings, which do something similar, IIRC. The BBC like some crispening on EX1s, I can't abide it. Whilst it may not be on NOW, maybe dialling in a negative value might calm it?

Just a thought...

And I found Alister Chapman's excellent article on it too: http://www.xdcam-user.com/forum3/viewtopic.php?f=10&t=21
 
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Well, even the F3 has some aliasing, BBC's Alan Roberts complained about it quite sarcastically. But it's far from anything I've seen on a DSLR, and I think Matt is right, you need to reduce sharpening – Sony is always overdoing it.

If you want less moiré than this, you'll need an Alexa or a RED…
 
Felix, the amount you're encountering is typical for what an FS100 does. I didn't really notice any on the first clip, and on the second clip, like Matt, I saw it on the brick roof on the building on the right. That's comparable to what I've encountered with the FS100 before, and comparable to what Alister and Timur have shown on their F3's. Seems like your camera is performing normally.
 
Alright, thank you guys very much for your help! :)

I found out that windows media player produces a lot more aliasing than VLC. Unfortunately a bluray disc of the footage looks more like WMP...

I´m a bit disappointed of the camera.
 
WMP also introduces an obscene amount of contrast and just screws with colors in general. I try to avoid using it whenever possible =)
 
FelixGER said:
Alright, thank you guys very much for your help! :)

I found out that windows media player produces a lot more aliasing than VLC. Unfortunately a bluray disc of the footage looks more like WMP...

I´m a bit disappointed of the camera.
Click to expand...

If you recall, there were some strange things going on with certain tools interpreting the footage. I would suspect this first. Remember the clip of the street with the moped in front? I studied that footage VERY carefully and found it to be VERY acceptable. When we had the person complaining about it show us the footage as a screen cap from Sony Vegas, there was the problem. Something was wrong with the import.

If I recall, you are using Sony Vegas as well (and it is ironic this problem happens with a Sony editor), so I might look to make sure something didn't go wrong with the import and then write out to bluray.

It's very strange and I am not sure why anything would do what we've seen, but at least we know about it.
 
Sharpening was +2. I reduced it to 0 now.

I´m using Premiere CS5.5 now. Frameserving the AVCHD timeline directly to TMPGenc 5 and encode it to x264 for Adobe encore. That should be pretty optimal, but who knows...
 
FelixGER said:
Sharpening was +2. I reduced it to 0 now.

I´m using Premiere CS5.5 now. Frameserving the AVCHD timeline directly to TMPGenc 5 and encode it to x264 for Adobe encore. That should be pretty optimal, but who knows...
Click to expand...

True. I believe I produced the same effect inside Premiere as well, but not Final Cut. For the life of me I cannot figure out what is causing it.

I'd DEFINITELY run with sharpening 0. :) While sharpening does not 'add' moire/aliasing, it certainly helps pop it out :)
 
Sony makes great sensors, but IMHO they always tend to be too aggressive in sharpness and too shy in OLPF (optical anti-aliasing filter). This makes images look sharper at first view, but much of that is false detail. A RED or Alexa will look softer at first glance, but they avoid luma moiré completely and chroma moiré pretty well. No Bayer-pattern sensor will be completely free of the latter, or you drop resolution to half.

So, yes, FS100 and F3 have more aliasing. Period. Read Alan Roberts' article at the BBC's site, it's public.

But nothing as bad as any Canon DSLR available until today.
 
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