Stereo Portrait Project Camera Rig

Heres some pictures of the Stereo Portrait Project Ver. 1.0 camera rig we used to capture the images.  As a first working version, I have a romantic feeling towards those pieces of wood.  I might give it a pro black finish for the Creative Sydney Stereo Booth.

And for all you tech lovers out there, here’s a summary of how we made it happen after the jump:

For the Stereo Portrait Project, we used off the shelf hardware and software, from the cameras, lighting, triggering, post production to the printing of the book. We shot using Nikon d90’s with shutter cables connected to an RF trigger. The Lighting system was three nikon sb900’s, one connected via pc sync in a soft box, the other two optically slaved.

A custom camera rig was needed to put the cameras as close together as possible, roughly emulating the distance between the human eyes. There was no quick or cheap solution to do this, so we built a number of prototypes out of wood and brackets. Since we were taking portraits, having the cameras mounted vertically base to base made the most sense, giving us arelatively small interoccular and a vertical frame. We ended up making three versions of the rig, the first to test how the base plates attach to the cameras, a hand held version that wasunwieldy to hold and the final tripod mounted version you see in the pictures.

To synchronize the cameras we used an RF trigger split out to two preload shutter release cables. We tested how fast we could sync both shutters together with the flashes, and got reliable sync up to 1/160 speed. Giving us the ability to have people move around, talk to us and not inhibit their performance. This was very important since hands in front of the body look fantastic in 3d.

The image pairs were then sorted using Aperture before being exported into Nuke, where final tweaks were made before combining them into the final Anagylphic 3D images.

Aperture made sorting and tagging hundreds of very similar left and right images much more managable, while Nuke allowed us to simply adapt many of the same 3d workflows we use in our day jobs as stereoscopic visual effects compositors.

We printed a limited edition run of 25 books for the exhibition using the self publishing website Blurb. The process from layout to finished product was smooth and easy. When we got our books back, they looked exactly as expected. This is a great service that we used to compliment the larger prints that will be on display in the gallery and give the people a chance to take home the entire collection for tabletop stereoscopic enjoyment. The book is now available through their online bookstore here.

Its amazing what a little bit of loungeroom R&D, phone calls and online ordering can do.

7 FEEDBACKS

  1. chrise says:

    How did you sync the metering? I have a d300 camera rig, and even though I have sync’d flash/focus/metering.. These values can be different in each camera.

    I routinely get shots where, while metered at the same instant, each camera metered differently.

    CE

    • admin says:

      The rig was all in manual mode, with manual settings iso, shutter, f., white balance, focus and got very consistent frames from both eyes.
      One thing that threw us at the start was the image colourspace setting, one was in AdobeRGB, the other in Srgb, once we switched both to the same settings then it was back to being the same.

      Do you get any frames that have the right exposure, are the lenses both of the same time period, we both bought ours 1 month apart. Are you using a mirror rig?
      A DOP friend of mine that recently did a stereo AFTERS film was saying that through the mirror rig you lose about 1/2 stop from the reflected light through the system.

  2. Marty Gough says:

    Beautiful portraits! A little creativity certainly goes a long way.

  3. Totoaus says:

    I saw somehting about this on CNet Australia, and posted some notes. I tell you in case you to see my feedback. In addition to that, it might be nice to see this, any chance it’l come to Tasmania?

  4. [...] ‘Stereo Portrait Project’ è il nome del loro progetto, ora anche un fotolibro in edizione limitata tramite Blurb. Sul loro sito i dettagli per l’autocostruzione del sistema, estendibile a qualunque tipo di reflex digitale. [...]

  5. Emily says:

    How did you sync the metering? I have a d300 camera rig, and even though I have sync’d flash/focus/metering.. These values can be different in each camera.

    I routinely get shots where, while metered at the same instant, each camera metered differently.

    CE

  6. Amy says:

    I saw somehting about this on CNet Australia, and posted some notes. I tell you in case you to see my feedback. In addition to that, it might be nice to see this, any chance it’l come to Tasmania?

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