So You Want To Learn 3D? How to bring the stereoscopic dream to life

It’s been a long journey into the realm of 3D documentary filmmaking for myself and the rest of the Parallax team.

A rugged path marked with a few big wins – triumphs earned via epic missions through a series of formidable stereoscopic obstacles.

The good news: we’ve trampled a rough trail … a trail that will hopefully help other enthusiasts avoid getting too thoroughly lost in the enchanted forest that is 3D production.

Our stereographer, Sean White, details some quick and dirty ways to follow us into the third dimension.

Immerse yourself

Learning 3D is a full-time job. A solid foundation of stereo principles is needed if you want to succeed

Research. Take an introductory course. Enlist the help of an experienced stereographer.

Or for true 3D keeners, deconstruct a ready-made system into its basic components. Best way to master the beast. Hands down.

Start small

Our first foray into 3D filmmaking was a modest one involving two $20 cameras purchased on EBay and mounted on a side-by-side rig.

Starting small makes getting bigger the only option.

Experiment

Always think of ways to make your 3D system better. Tinker, take risks, and invent.

Capitalize fully on your mistakes by knowing exactly where you went wrong. Leave no error unturned.

Share your failures and successes with other experimenters. Best way to avoid epic catastrophes.

Keep your eye on the prize

Driving your whole 3D pursuit is the desire for results – not only should you want something properly stereographed but something beautifully stereographed.

Keeping this in mind, never forget to reverse calculate . . . knowing what you want in the end means taking purposeful, well-thought steps to get there.

Alright, that about does it … now it’s time for the good stuff:

Get out there, get dirty, and above all, have fun.

–Ian Herring, President

@ianherring

File 177

Stereographer Sean White films Battle Castle: Dover.

Click here for more photos of the Beamer EX and Parallax crew in action.

Shooting a 3D documentary: positioning implosion cams around the Fonte Nova Stadium

The explosive climax of our first 3D documentary production – the implosion of the Fonte Nova Stadium in Salvador, Brazil – is just days away.

Close to 20 camera systems will capture this high-profile event in stereo for the explosive demolition series Blowdown when Controlled Demolition Inc. pushes the button on August 29.

The production crew’s challenge: scope out the best places to put these cameras.

Ian Herring and the rest of the team have already nailed down locations for most of the kill cams. These systems will be placed inside the stadium, destined to be annihilated by the implosion as they capture the event ultra close.

Next, they have to decide where to position our perimeter cams.

So they hit the neighbourhood to scout out the best spots.

Stereographer Sean White explores a piece of Salvador …

… and checks out a tentative camera position

The crew also snapped some VFX plate shots of the stadium while they were offsite.

Our compositor, Jakub Kuczynski, will use these stills to create a 3D model of the structure.

This stereoscopic photo-real stadium will stand long after the real venue falls: we’ll use it in the show to orient the audience, share implosion scenarios, reveal explosive demolition details, etc.

T-3 days.

–Nicole Tomlinson

Shooting a 3D documentary: the Fonte Nova Stadium

Ian Herring and the Parallax Film Productions crew are down in Salvador, Brazil shooting our first 3D documentary. And as they trek around stereoscopic gear in tow, filming the explosive demolition series Blowdown, they’re getting to know the beast that is the Fonte Nova Stadium.

The megastructure’s being taken down to make way for a new 2014 World Cup facility– but it’s not going to go easy.

And with a catastrophic structural failure marking the stadium’s deadly past, the demolition must be approached with the utmost caution.

From a filmmaking perspective, Ian says the condemned structure really lends itself to 3D because:

1. Of the high columns and circular configuration.

2. No angle is the same from any one point within and outside of the structure.

3. It’s laid out in front of the crew – it’s very telegenic.

He also prefers the wide layout of the stadium to a high tower or skyscraper from a logistical standpoint – though the crew has to schlep far distances between setups, there are certainly less stairs to climb.

Demolition prep work means no power – on these sites elevators are never an option.

Five facts about this condemned giant

-This stadium, slated for implosion on August 29, is one of the largest in the world. A mind-boggling 110,438 people crammed into it on February 12, 1989.

-This demolition is part of Brazil’s $1 billion 2014 World Cup stadium overhaul – Salvador and three other locations are getting brand new arenas, other sites are being revamped.

-The Fonte Nova stadium closed its doors after tragedy struck in 2007 when a section of the high terraces collapsed, killing seven people and injuring 40 others.

-The Bahia Arena, with a tentative capacity of about 44,100 will be built in the Fonte Nova’s place. Construction is slated to commence shortly after the demolition.

-The stadium’s located in Salvador, Bahia, which boasts a population of some 2.7 million and was the original capital of Brazil.

–Nicole Tomlinson

Shooting a 3D documentary: video and details from the Fonte Nova Stadium

Ian’s arrived in Salvador, Brazil and hit the Fonte Nova Stadium demolition site where we’re shooting our first 3D documentary.

And he’s rolling.

The awesome view of Salvador, Brazil as he flew in:

 

Wow.

Yesterday it was all about B roll, as stereographer Sean White trained others on 3D capturing techniques.

Here are some videos on-site – you really get a feel for how massive and messy this stadium is:

Crew climbs up stairs (and around random demo debris) carrying stereoscopic gear

 

Sean details Parallax Film’s custom-made mini beam splitter, which houses two Canon 7Ds

 

Other field notes:

The crew captured a lot of B roll – establishing shots (very Roman Colosseum – no individual seats in this stadium!), columns, Controlled Demolition Inc. President Mark Loizeaux inspects the stadium’s concrete/rebar composition.

Next mission: establishing shots of Salvador.

–Nicole Tomlinson

Shooting a 3D documentary: thinking 3D in the field

As our first 3D documentary shoot approaches, I’m contemplating the intricacies of shooting in the third dimension. Our stereographer, Sean White, is familiarizing the rest of the crew with the new things they’ll have to take into consideration when shooting the prep and implosion of the Fonte Nova Stadium in Salvador, Brazil.

Bottom line: the jump into 3D will change how we frame and shoot the explosive demolition series Blowdown.

In other words, it will change pretty much everything.

And to make it work, the crew’s going to have to learn how to “see” in 3D.

They’ll have to think about where things are going to fall into positive and negative space.

They’ll have to identify visuals that are going to look superb in 3D – and, just as importantly, recognize the shots that won’t make the cut.

They’ll have to understand the strengths and limitations of each rig – our beam splitter, mini beam splitter, and the plethora of side by sides – so they know which one works best for which shot.

They need to recognize when we can’t get too close to a subject.

They must realize that they can’t frame something in the extreme foreground and pan to reveal a subject in the background – a trademark move to help create depth in a 2D image can mean too much volume in 3D.

They also need to make sure there are no objects floating around in the foreground (ie. wires, the edge of a wall, rebar sticking up, edge of a concrete slab) – and understand what details could be distracting.

Not to mention they’ll be working on a dusty demolition site – for example, excavators pulling up dirt, swinging into the shot as the “claw” grabs something.

They’ll not only have to think about how this will play in 3D, they’ll have to think about if one lens is dusted out, say, by the excavator’s load.

If they miss any one of the parameters on any one of the eyes this shot – or any other shot – will be useless.

Here’s to cleaning the cameras – times two.  And all the adventure that comes with it.

Lucky we have a great crew. Ready to roll.

Shooting a 3D documentary: why we use still photography to capture time lapses

A bit more re. how we plan to produce time lapses for our first 3D documentary.

We’ve used still cameras to capture time lapses for previous episodes of Blowdown, the explosive demolition show we’re gearing up to film – for transitions, establishing shots, and work that’s progressing.

Here’s a raw example of one from an episode in Season One – the implosion of four cooling towers at the Sellafield nuclear facility in England:

The reason we use this technique is because it gives us photos that are higher resolution that HD – pristine, jpeg images up to 21.1 MP.

Obviously much better quality than frame grabs off of video.

It also means our primary video cameras/crew can be used to film action – in this case demo work on the Fonte Nova Stadium in Salvador, Brazil – while the still cameras (in this case Canon 7Ds) sit unmanned on a side-by-side rig, automatically collecting shots.

In the 3D realm, the super high resolution will allow us to converge and do digital zooms in post within the time lapse without losing any quality.

The mini beam splitter rig: portability for 3D documentary filmmakers

The mini beam splitter rig concept we came up with to film elements of our first 3D documentary has come to fruition.

We decided to try and build because the thought of moving and setting up our Film Factory 3D Indie BS Rig for one or two close ups is just too painful. Now we can use this smaller unit to shoot these components for the explosive demolition series Blowdown and save schlepping the full-sized rig around the Fonte Nova Stadium in Salvador, Brazil for when we’re shooting extensive B roll in one location.

The goal was to custom-design a rig that would house two Canon 7Ds and that was small enough and light enough to be operated by one person, handheld.

To achieve this, the mini beam splitter rig:

1) Has customized aluminum rails that aren’t as big and fat as the ones on the Film Factory Indie rig.

2) Is bolted and tweaked specifically for the dimensions of the Canon 7Ds.

3) Has a smaller box.

4) Is designed so the second camera is underslung – easier to handle because it’s not as top-heavy.

5) Allows us to get camera lenses closer to the mirror.

It was whipped up in a couple of days, and it’s not pretty – but it is portable and robust. We’ll see if it works.

Shooting a 3D documentary: how we’re syncing Canon 7Ds (VIDEO)

Yesterday’s post has created some confusion between syncing Canon 7Ds for 3D time lapse photography and syncing them for 3D videography.

I’ve edited to make clear yesterday’s post is for stills, and am now posting re. video.

To sync Canon 7Ds while shooting film footage for our first 3D documentary we plan to use the same infrared box systems we’ve rigged to sync our Canon Vixias, and slate our shots so we can sync in post.

I’ve outlined this technique in previous post for Vixias. For 7Ds we:

Set both cameras to self-time/infrared mode, which allows us to use an infrared remote (The Canon RC-5, in this case)

Position our box designed to receive any infrared signal and transmit it through a split cable to two infrared sensors.

Tape the infrared heads at the ends of the split cable to the infrared sensors on the two Canons and then use the remote to start them in sync.

And yes, because of the internal clock circuitry disparities we don’t get a 100 per cent accurate start and stop, as the cameras may not start recording on the same frame.

Our stereographer, Sean White, has found our 7Ds can be out of sync by one or two frames at 30 FPS.

To get around this we’re doing a physical slate at the start of each shot for our editor – this way he can toggle shots by a frame or two and sync from where the slate is.

Sean’s tested this system extensively.

He’s found that once you sync clips at the start they stay in sync for up to 12 minutes straight – much more time than we need to get the types of shots we’re going to capture with the 7Ds.

 

Test footage:

 

VIDEO

 

Shooting a 3D documentary: how we’re syncing Canon 7Ds (STILLS)

I’ve received a few questions re. how we’re syncing Canon 7Ds we’re using to capture elements of our first 3D documentary … so I’m blogging about it to share with everyone.

We’ve used DSLRs to get high res stills at set intervals for time lapses for years, but, of course, never in 3D.

For this 3D episode of Blowdown, the explosive demolition series we produce, the crew will use 7Ds for these time lapses – and also for establishing shots of the condemned sports stadium in Salvador, Brazil and, of course, the implosion itself.

Here’s how we’ve brought this system into the third dimension:

1) Splice cable so there are two heads on one intervalometer.

2) Attach heads to timer remote ports on two Canon 7Ds on side-by-side rig.

3) Sync using the one handheld intervalometer.

Voila!

I’ll provide more details re. our time lapse strategy later: wanted to get this bit up ASAP.

Hope it helps.

 

Shooting a 3D documentary: anaglyphic test footage – 2 Canon 7Ds on a side-by-side rig

As I’ve mentioned, we’re testing several camera systems out to decide what to use to film our first 3D documentary. We’ve seen promising footage out of our A cam system – an Iconix sensor system with Meuser Optik lenses on a side-by-side rig.

Now our stereographer, Sean White, has brought in B roll he shot with our C cam system: two Canon 7D DSLRs on a side-by-side rig.

Happy to say it’s not looking bad either.

Need a pair of the old school anaglyphic glasses for this one:

There’s only one problem: some of the backgrounds are diverging past our broadcasters’ specs.

So now we’ll have to experiment with different interaxials until we fix the issue.

In the field – the demo of a condemned sports stadium in Salvador, Brazil for the explosive demolition series Blowdown – this system will be used to capture establishing shots of the structure and, of course, its implosion.

Here’s an earlier video of Sean, walking though the setup.

We’re also honing how to capture our time lapses with this system – details to come.