Moire & the RED-One ??

[George D.]

Will there be an issue, any issue, with moire patterns showing up on RED-One footage?

It is a serious concern because we shoot a lot of macro of insects. Since insects have large, compound eyes with hundreds of honey-comb like facets covering them, if that should create moire patterns, it would ruin the shots. Diffusing the image in post, is NOT an option for us.

Cameras with CMOS shutters are considered notorious for this, and I just want to know if it COULD BE an issue with the RED-One in 2K, 3K, or 4K.

Thanks.

[Graeme Nattress]

We use proper optical low pass filtering. That would mean it's highly unlikely that any issue would occur.

Graeme

[Chris Parker]

i have seen moire on reds many times. this can happen with any camera, including film. the times that i have most commonly seen it are on close up shots of TV screens that are on. i have seen some when there are blinds on windows or the wrong wardrobe on talent.

for your macro shots, i would test a shot that you think may be troublesome and see for yourself.

[D Fuller]

i have seen moire on reds many times. this can happen with any camera, including film. the times that i have most commonly seen it are on close up shots of TV screens that are on. i have seen some when there are blinds on windows or the wrong wardrobe on talent.

I think you might be confusing the moire of the display system with moire of the cameras. Film cannot produce moire because the grain pattern is random. But you will see moire from the monitor you view it on. The same can be true with the Red One. Some shots that don't show moire at full rez can moire in 1080 or 720 or 480.

That being said, your advice is still spot on: test, test, test.

[IAN SUN]

I think you might be confusing the moire of the display system with moire of the cameras. Film cannot produce moire because the grain pattern is random. But you will see moire from the monitor you view it on. The same can be true with the Red One. Some shots that don't show moire at full rez can moire in 1080 or 720 or 480.

That being said, your advice is still spot on: test, test, test.

What he said.

[John "Woody" Glaser]

Take a look...
http://reduser.net/forum/showthread.php?t=43594

[Harry Clark]

Exactly what D Fuller said.
You need to take the display system into account because that is how people are going to VIEW the footage. It does no good to tell your client that the Red is "properly optically low-passed" and "will likely never moire" if the herringbone pattern on the actor's jacket will indeed moire at 1080. Best to do a quick test, preferably with a Rocket so you can view on a real TV screen and not a computer screen...
Good link, Woody.
I would say that moire on an insect's eye would not seem likely with Red, but I would test.
Cheers,
Harry

[David Rasberry]

Any time you overlay two fixed optical patterns that are near the same spatial frequencies you will get moire.

[craigjkharris]

You can see moire's on a preview monitor - but I've never seen it with the R3D file.

[HD Hildebrand]

You also have to consider what you output and compress to. I have some aerial shots that look great in raw, but when outputting to certain compressions/codecs there is moire on some office tower windows.