Losing resolution every other frame

[Alan Greene]

I'm working with R3Ds shot on build 30, 120fps @ 2K, from an M-X. And I'm seeing some very weird stuff. At full debayer, I have many clips where every other frame appears to be about half the resolution.

As you can see, one frame looks fine, while the next is lower resolution. This toggles back and forth. From what I've seen, it seems to be only in the 2K/120fps clips, and only in those that have a lot of detail or high frequency movement. I remember something a long time ago about how lots of detail could choke REDCODE, but every other frame here looks just fine.

Some clips look good until there's a lot of movement, then they start toggling back and forth between these two different qualities, and the clip never recovers, even if the movement subsides.

These artifacts also appear in QT exports from REDCINE-X.

Any ideas?

Thanks,
Alan

 

[Stuart English]

High speed 2K issue

High speed 2K issue

Upgrade to Build 30.6.0. That is a known issues fixed in this build

see http://reduser.net/forum/showthread.php?t=48771

 

[Greg M]

Stuart is this only at 2K?

 

[Stuart English]

Capture error

Capture error

Yes, it only happened in 2K and near 120 fps...

 

[Alan Greene]

Thanks for your reply. Are the R3D files salvageable? Or is this something that happens in the camera?

 

[Stuart English]

2K 120 fps artifact

2K 120 fps artifact

(If it happens) it happens in the camera, so it's in the recorded .R3D file.

No obvious way to restore the odd frames I'm afraid.