Video: what 3D tech challenges mean for documentary filmmakers

More from our stereographer Sean White and 3D technician Rory Lambert on a bunch of 3D gear we’re testing to film our first documentary in stereoscopy.

Yesterday I posted video of Sean – today, Rory’s in the spotlight (well, not really … he’s in our production house, working on gear, with no elaborate lighting. But he’s on his game):

3D HD growing pains: what they mean for event-based filmmakers

3D gear and data management: must knows for event-based filmmakers

Next: the C cam challenge.

Canon 7Ds – why they don’t work for our 3D documentary filmmaking

Argh! The Film Factory 3D Indie Rig we purchased for our B cam system to shoot our first 3D documentary has arrived and the Canon 7D DSLRs don’t work with it!

Here’s the problem: beam splitter rigs are extremely sensitive – anyone who works with them has undoubtedly discovered that you have to have perfect alignment of the two cameras to each other, and to the mirror.

To make sure they’re aligned, we need to use a 3D monitor – so we can see both cameras on the same grid.

The model we’ve purchased (and as far as I can tell the only one that fits our field requirements, tech demands and budget) – the Transvideo Cineform 3D Monitor – takes an HDSDI signal from both cameras and combines them.

The Canon 7Ds aren’t built to send this signal … so there’s no way to see them on the monitor.

Even if we could somehow convert the signal they do send to HDSDI, the monitor also needs these two signals to be genlocked – impossible with these models.

So yeah. We need new cameras.

Looks like we’re onto plan B – Sony EX3s. This system’s been tried before, so I have no reason to think it won’t work for us.

But the EX3s are heavier than the Canon 7Ds – more weight for our already-overburdened field crew.

Excess baggage is a necessary evil in the third dimension, to be sure.

Still, it would have been nice to take a bit of the load off.

Onwards and upwards.

3D documentary filmmaking – the great splitter rig DSLR experiment

I’ve chosen cameras to test with our 3D Film Factory BS Indie Rig, two main parts of the B cam system we’ll need to shoot our first 3D documentary.

We plan to mount two Canon 7D DSLRs on the Indie Rig, a mid-sized model that’s currently being shipped to our production house.

Our stereographer, Sean White, chose the middle-of-the-road rig because he was worried that a small one wouldn’t allow for enough coverage when using a wide-angled lens, that the cameras would “see” the inside of the beam splitter box.

And a large rig was out of the question for the event-based, run-and-gun industrial-worksite shooting that’s required Blowdown, the explosive demolition series we’re going to shoot. Our stomping ground will be a huge, condemned sports stadium in Brazil!

But there’s a huge potential downside to our mid-sized, non-refundable rig – if the Canons don’t work, logistically or qualitatively, we won’t be able to mount larger, higher-calibre video cameras because the rig’s not big enough.

But it’s a gamble we have to take – as far as we can tell, there aren’t any other systems like this … no documentary has been filmed this way, using a hand-held self-contained unit.

(more…)

Canon 7Ds – why they don’t work for our 3D documentary filmmaking

Argh! The Film Factory 3D Indie Rig we purchased for our B cam system to shoot our first 3D documentary has arrived and the Canon 7D DSLRs don’t work with it!

Here’s the problem: beam splitter rigs are extremely sensitive – anyone who works with them has undoubtedly discovered that you have to have perfect alignment of the two cameras to each other, and to the mirror.

To make sure they’re aligned, we need to use a 3D monitor – so we can see both cameras on the same grid.

The model we’ve purchased (and as far as I can tell the only one that fits our field requirements, tech demands and budget) – the Transvideo Cineform 3D Monitor – takes an HDSDI signal from both cameras and combines them.

The Canon 7Ds aren’t built to send this signal … so there’s no way to see them on the monitor.

Even if we could somehow convert the signal they do send to HDSDI, the monitor also needs these two signals to be genlocked – impossible with these models.

So yeah. We need new cameras.

(more…)

3D rig showdown – side-by-side? Beam splitter? Both

Two is better than one, right? We’re getting a clearer idea of what it will take to shoot our inaugural 3D documentary: To effectively capture Blowdown in the third dimension we’ll need two different kinds of rigs.

For our A cams – we need a handheld, side-by-side rig, with all of these components:

– Heads – sensor – two Iconix cameras;

– “Brain box” to control Iconix cameras;

– Lenses that attach to the Iconix sensors;

– Convergent design 3D Nano-Drives;

– Interaxial sliders for the heads; and

– A handheld rail system

For our B cams, we’ve decided a beam splitter rig’s the way to go.

So we’ve ordered 3D Film Factory’s BS Indie Rig. It’s $2,900, pre-paid and no returns.

Hope it works.

From 2D to 3D – converting stock VFX

It’s funny how whenever one feels like they are going in circles – one probably is.

As we prepare for our first 3D shoot, we’re feeling stereoscopic frustration because we keep hearing – “you can’t get there from here.”

I decided it was time to break the loop … by tapping our library of documentary material and our ambitious compositor.

We don’t have any footage shot in 3D, but we do have an extensive collection of 2D VFX shots from previous shows.

So as the rest of the team hunted for equipment, Jakub Kuczynski forged ahead and tried to add a third dimension to this material using After Effects.

His visual stock: cinematic shots from Blowdown and Ancient Megastructures -not CGIs but VFX constructed with plate shots – with live action or green screen elements.

The outcome – our first taste of 3D success … Parallax in stereoscopy.

Here’s a screen grab from Jakub’s demo –  converted VFX material from the http://successessay.co.uk/, a stadium in Indianapolis, Indiana that Controlled Demolition Inc. imploded and we delivered in 2D:

But as I absorb our visual milestone I’m reminded that our VFX are only window dressing for the actual meat of the story.

If we can’t get the story down, the window dressing will only serve to draw attention to the painfully empty house it hangs in.

Can we conjure the equipment we need to capture interesting and compelling 3D doc footage in the chaos of a run-and-gun industrial environment?