3D RED ONE side-by-side rig

[Cristina S]

Is a side by side rig OK?
With the interocular distance or the interaxial separation allowed by the RED ONE?

Or for 2x Red One, only a beam-splitter can be OK for 3D production?
Unfortunately, there's no budget for it.

Is it viable the use of a side-by-side rig or no use at all?
If so, in any situations?
If so, from what distance might we use the side-by-side rig?

 

[Alec Morris]

it depends on how you are planning to show your work. is it intended for a 3DTV or a theater screen?

screen size changes. the distance between our eyes does not. therefore, something may look great on a 50" TV but be unbearable to watch in a movie theater. the distance between 2 polarized images on a TV may be only a few inches, but can become a few feet on a massive screen. when we try to look at something that is hyper-stereo (large IA, or distance between cameras), we literally go bug eyed (assuming it's positive parallax) or super cross-eyed (if it's negative). obviously, this is a very unpleasant sensation, and in many cases, we can't even process the image. reminds me of opening my eyes with a pretty severe hangover. allowable interaxial is directly proportional to foreground and convergence distance, and is inversely proportional to focal length and screen size.

therefore, side by side is ideal for anything where the distance between camera and subject is large, such as landscape or helicopter shots, or where the delivery medium is small, such as a laptop or TV. if you're wondering how far your subject or how large the screen can be relative to IA, there are formula's that can be found online. Or... there are even iPhone apps!

you should check out the 21st century 3D rigs if your budget is really tight. phenomenal beamsplitters that are much more affordable than the rest.

 

[Paul Leeming]

As Alec said, side by side Red cameras are only viable for long distance subjects. For narrative work it won't work without causing major eye strain.

I'd look into mirror/beamsplitter rigs if you want any flexibility. Very tough if you have no budget unfortunately!

Cheers,

Paul

 

[Pawel Achtel]

Another option is to limit the distance of your background. You can get away with large, even huge IA if there is relatively small parallax between your foreground and background. Use full Bercovitz formula, instead of simplified (assuming background at infinity). I shoot 100mm IA all the time underwater and can usually compose the shot such that the parallax falls well within +/- 2% of the screen width.

 

[Leland Haushalter]

The Element Technica Quasar Rig is great rig for RED Ones. Otherwise I like the CC3D rig for either Scarlet or Epic shoots.




-Leland

 

[paulherrin]

if you don't have the budget for a stereographer, i would seriously consider how and why you're shooting 3d in the first place. there's a lot more to shooting stereo3d than sticking a couple cameras next to each other and hoping for the best. maybe you'll get lucky, but why ignore the information that's already about? i'm just peering into it myself. check out these resources.

http://www.reduser.net/forum/showthread.php?53821-Trying-to-find-3D-learning-resources

also, check out clyde's book (new since then): http://www.amazon.com/Think-3D-Directors-Cinematographers-Stereographers/dp/1470150778