Film Cameras Suffer From MOIRE as Well (Look At This Video)

Barry_Green said:
Film doesn't moire. Editing it in digital, especially with a lousy scan or conversion, causes moire.
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Now, I do not know the technical aspects but I am more than sure this was shot on film judging by the dynamic range alone. Now whatever reason caused the Moire it is there and truly disturbing.... It just seems that I see Moire everywhere now, which I thought was only something Dslrs had a problem with.
 
It wasn't there when it was shot on film, but due to global warming moire is starting to really become a problem, both for video and film. Even projects shot on film that didn't suffer from moire are now displaying it when viewed on modern technology, and in our current environment.
 
Moire can be created by a number of things, usually involving low-quality work somewhere along the way. You'll never see moire in a film print in a theater, ever, because film cannot create moire patterns. But you might see it on a low-quality DVD scan of the film, or on a standard-def TV broadcast of a film, if they use quick and dirty downscaling algorithms.

The difference between the DSLR and basically everything else is, the DSLR bakes the moire into your source footage, where you can never get away from it. The other cameras and film create clean images and any moire that gets introduced is introduced after the fact.
 
When my kids were young, I used to watch the old Benji films with them, This was when I really noticed Moire for the first time. Of course it was shot of film because it was from the seventies, not to mention had all the other traits, But due to the digital conversion, it created moire in areas, especially on shingled homes. Then I started to notice it on many films, all shot on film, all were transfered to a digital format.
 
vision_filmz said:
Now, I do not know the technical aspects but I am more than sure this was shot on film judging by the dynamic range alone. Now whatever reason caused the Moire it is there and truly disturbing.... It just seems that I see Moire everywhere now, which I thought was only something Dslrs had a problem with.
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As Barry has said... this is not from the film. So the contrary to the thread title, flim cameras do not suffer from moire. It's also not just a product of digital. Even the older, analog CCD cameras could see moire, but that was easily fixed by pulling the camera back just a hair and then zooming in just a hair.

What you are looking at is a YouTube video. Not just that, it's a YT video that's been uploaded only at 480p. There was terrible moire on the orange shirt toward the end of the vid, but I saw a lot of other artifacts in there that are merely the result of poor compression. Whether this was shot on film doesn't really matter for any of that... it's what was done with it in post.

The other factor at play here: more and more, these hip-hop videos are turned around quickly. There was likely a shortcut taken somewhere along the line that caused this, whether it was in a rushed film scan (to digital video) or in the compression for distribution. This is also why DSLR cameras are becoming really, really popular with the hip-hop music vid industry... cheap and accessible production that can be turned around very quickly.
 
Im sorry no- film will not miore or alias- it doesnt have rows of pixels but instead randomized photosites that vary with each frame.

Miore in "film" is never in the film image it self, it happens on some telecine's - especially older SD telecines which did had miore/aliasing problems (which lead to oversampling the image at hd/2k/4k ect). Over sampling the film and then properly downscaling to your intended resolution gets rid of most of this error- but its not the film. Its the digital part : )

Just imagine the little ccd or tube that was photographing the processed film in the telecine- that ccd or tube is causing the aliasing.
 
vision_filmz, i dont know why you have this unquenchable zeal to defend canon dslrs?

NOBODY ever said that the moire issue rendered them invalid. it's just one variable to consider. just as a person would do with any other camera choice.
in fact, if someone was looking for a reason to shoot down canon or any dslr as an option. there are a variety of other and probably more important issues they could pick.

seems to me. this topic has been covered as well as it needs to be.
 
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