GH4 Moire at UHD - How is it possible?

[Uwe Lansing]

I have already posted this clip at the gallery: http://www.dvxuser.com/V6/showthread.php?325756-Harley-Days
At 00:41-00:45 there seems to be some moire. How is that possible at UHD (4k)? For a closer look I uploaded an original-clip for download:
https://www.dropbox.com/s/te6g9qh4vbzx0r9/P1000653.MOV

 

[tacotim]

My guess is what you are seeing is two layers of mesh materiel on top of one another, in that case, you would see moire with your eyes as well as your camera. It's not a short coming of the camera, it's a physical phenomena

 

[Uwe Lansing]

My guess is what you are seeing is two layers of mesh materiel on top of one another, in that case, you would see moire with your eyes as well as your camera. It's not a short coming of the camera, it's a physical phenomena

Ah..., I don´t have a clue about this stuff. I was wondering how this negative effect could happen since the UHD-Mode has no lineskipping or binning. Thanks for the explanation!

 

[LyleGorch]

Yes, the Gh4 did a good job of capturing an actual optical effect of two mesh's moire-ing. That whole piece makes the much maligned 14-140 look decent.

 

[R Hudson]

I agree. New respect for the 14-140