Here is another DIY 3D beamsplitter camera rig project built by Jesse Blanchard, it is almost finished and the total cost of the project should be less than 100$. The rig is built mostly from wood and is intended for shooting with dual Canon T2i DSLR cameras using their wide angle 18mm zoom lens (taking into account the crop factor). What is left to be done for the rig is the IR split trigger, eye-brow, and the light blocking set-up, but so far it looks quite good and not very hard to build. So now we are waiting to see the final build and some demo 3D footage shot with it.
April 30th, 2011 · 4 Comments · Shooting in 3D
January 20th, 2011 · 14 Comments · Shooting in 3D
I’ve been working on a DIY beam-splitter camera rig for shooting stereoscopic 3D video for a while now with the idea to have something built mostly from different computer related parts I have handy in order to lower the total cost of the project as much as possible. With the cheapest professional beam-splitter camera rigs starting at about $3000-4000 USD and going to tens and even hundreds of thousands of dollars for the high-end solutions it is quite hard for an enthusiast to start shooting 3D video to experiment or just for fun and to learn from the experience. So it is no wonder that a lot of people start building their own custom rigs, and my idea with this is pretty much the same…
At the moment the first phase of the test rig design is close to its completion, I’m just waiting for the two rails I’m going to use for adjusting the interaxial distance of the two cameras. I’m using two consumer grade HD cameras from Sony that I have, along with a custom modified set of LANC-based remotes for controlling the two cameras simultaneously, a small 50/50 beam-splitter mirror. The total build cost of the initial rough design should be about $100 USD, and as this is just a test project, the next version will probably look and work even better. The simple reason for that is the fact that while designing and building I’m learning on the go and getting new ideas to try, but the idea is still to remain a very affordable and easy to build design.
The idea for this rig is to be portable and light, with the next version planned to be built with parts probably from aluminium. The half mirror size is about 15 centimeters (around 6 inches) in width with the planned interaxial distance available to the user to be about 11 centimeters (around 4.3 inches). This of course is for shooting 3D video of closer objects as for recording landscapes or wider scenes a parallel rig with much bigger interaxial distance is usually a much better choice. After the rig is finished I do plan to also try recording HDR video with the two cameras, but that is a kind of a side project and another option you could use a beam-splitter rig for. The initial rough tests I performed today were quite promising and I expect to soon be able to have the interaxial adjustment rails attached and to record some test footage and post it here.