RED SPOTS appearing on footage (moiré pattern)

[Brendan H. Banks]

Front ND can cause it's own problems as well.

If you lift the OLPF and shoot without it altogether you probably will not have any problem, but you should test that out before you decide to shoot without an OLPF.

David

Cool! Super helpful. I tend to keep my images exposed at an f/5.6 or lower (save for specific content) so it's not as much a practical thing for me. It is always interesting to know how and why these things crop up though!

 

[D Fuller]

♫ When a grids misaligned with another behind, that's a moiré ♫

Credit to xkcd.com lol

Love it!

I'll use this one. In fact I may have to use it to get it to stop playing in my head, LOL!

 

[Anthony Berenato Jr]

Yep, this is how the OLPF will perform in these sorts of situations. There's a version of this pattern on almost all the RED cameras when shooting directly into the sun.

I'd agree and say if you could use an ND filter and shoot more open - you'll probably solve the majority of the issue. Requires a little testing.