Canon 6D aliasing issue (video attached)

[ahmad0420]

Hi guys! I'm very new to HDSLR video. This is my second video I'm working on. Never noticed this issue on my previous shoot using 7D. But this one is almost non usable. Anyone know what I have to do? Or what I'm doing wrong?

[video=youtube;mWb4RfAxQ7w]http://www.youtube.com/watch?v=mWb4RfAxQ7w&feature=youtu.be[/video]

Thank you!

 

[kandinsky]

I don't shoot Canon, but have read that this is a known issue with the 6D. There's a company that made a filter that's supposed to improve this. You can read about it here:

http://www.mosaicengineering.com/products/vaf/6d.html
http://nofilmschool.com/2013/02/canon-6d-mosaic-engineering-vaf-6d-moire-aliasing/

The 5D3 is, when cropped from 3:2 to 16:9, is essentially a QFHD sensor -- exactly 4 times the size of standard 1080p HD. The reason it looks good in 1080p mode is because the camera only has to combine 4 pixels into a single pixel (pixel binning). This is the exact same thing the C300 does to look so good. The 1DX has a smaller sensor that isn't a simple multiple, but it has very powerful processors to downsample in a high quality way. The 6D has a smaller sensor but doesn't have the processing power to downsample correctly (presumably) so Canon just throws out various lines to create the smaller image. It's less processor intensive but results in interference patterns. That's why the 5D3 looks great with moire, the 1DX looks almost as good, and the 6D still has the same problems that the 5D2 had.

http://www.canonrumors.com/forum/index.php?topic=12837.0

 

[sadper]

Wow that link is very useful.

But is this cause by the auto function?
I am not sure about it.
This is because when I use DSLR to shoot, I will have this issue but when I change everything to manual including the auto focus then this issue is like gone. So I was like thinking that this is cause by the auto function in the DSLR.