Why Epic can not SYNC when HDRX is on?

[Zhang Ming]

When I shot with HDRX on, it seemed the EPIC can never sync to my AMBIENT LOCKIT at any FPS, which means I can not shot 3D clip with HDRX, is there anything wrong? HDRX is so cool.

Also, it seemed I can only SYNC at 24FPS and 48FPS, other FPS can not work well (GEN yellow) no matter what TC and SYNC I set. Anyone successfully set to other FPS like 60? By what SYNC instruments?

 

[Zhang Ming]

Is it because HDRX has 2 different shutter speed in one frame? Anyway, HDRX can provide such a surreal feeling, I hope RED can add that function when SYNC, just Sync the A track will be OK.

 

[Peter Lyons Collister ASC]

you cannot genlock 2 cameras in HDRX.so for 3D its no good

 

[Jason Goodman]

Also, it seemed I can only SYNC at 24FPS and 48FPS, other FPS can not work well (GEN yellow) no matter what TC and SYNC I set. Anyone successfully set to other FPS like 60? By what SYNC instruments?

There are actually a lot of frame rates that work in 3D. You can go up to 90FPS at 5K WS. The settings can be a bit complicated however. Back in March I did some testing, there may be additional frame rates that work now, I haven't checked since then, but here is a google doc that lists the working frame rates.

https://docs.google.com/spreadsheet/pub?key=0AuJAHpbX6ekpdEt4d3BOcUk1ZDFnYlNROVhLdklKalE&output=html

Here's the original thread: http://www.reduser.net/forum/showthread.php?74154-EPIC-genlock-and-shutter-phase&highlight=

Exactly why HDR won't work in 3D is a RED question. If that process works independently in each camera, I'm not sure why it can't happen in sync.

 

[Zhang Ming]

There are actually a lot of frame rates that work in 3D. You can go up to 90FPS at 5K WS. The settings can be a bit complicated however. Back in March I did some testing, there may be additional frame rates that work now, I haven't checked since then, but here is a google doc that lists the working frame rates.

https://docs.google.com/spreadsheet/pub?key=0AuJAHpbX6ekpdEt4d3BOcUk1ZDFnYlNROVhLdklKalE&output=html

Here's the original thread: http://www.reduser.net/forum/showthread.php?74154-EPIC-genlock-and-shutter-phase&highlight=

Exactly why HDR won't work in 3D is a RED question. If that process works independently in each camera, I'm not sure why it can't happen in sync.

Thank you so much Jason, U R really a Goodman! This information is very helpful. Although I immediately tested and found completely different result, now I know I can try and find the workable combinations. On my Epic and SYNC, 24TimeBase and 24\36\48\72FPS can be very easily SYNCed for lots of resolutions, even I use some wired SYNC/TC integer number, all other choices rarely work....

 

[Zhang Ming]

you cannot genlock 2 cameras in HDRX.so for 3D its no good

OK, it is really a bit disappointing, I need more grading work then.

 

[David Cole]

This issue is worth escalating. Seems like Magic Motion could bring back blown occlusions in fast-moving scene elements. Could help take the curse off of motion blur induced occlusion rivalry.

Has anyone bugged with Red??

 

[Zhang Ming]

This issue is worth escalating. Seems like Magic Motion could bring back blown occlusions in fast-moving scene elements. Could help take the curse off of motion blur induced occlusion rivalry.

Has anyone bugged with Red??

I think there may be some tough tech issue they need to handle, but actually they can provide a simpler solution, SYC the A, leave the X as it has no sync, since we usually just use X for those too high lights, a little bit unSync will not be bother.