These are some designs I have been working on recently.
The objective is a quality indie S3D rig costing less than $1000.
The target camera is the Sony EX1, only because it is what my collaborators on this project are currently using.
Feedback is welcome, but please remember this is an open source project, not an Element Technica or P+S Technik clone.
Enjoy!
To view EASM files, download the free eDrawings Viewer
The PDFs also contain the 3D model, and require a newish Acrobat Reader.
Note that Mac OSX's Preview is not capable of rendering the 3D model in the PDF.
Cameras are set to 3in inter-ocular and aligned to center of mirror to test the basic geometry.
The drawings include an image cone for the Sony EX1 at its widest zoom.
The EX1 lens is 5.8mm at its widest, which translates to a 62° horizontal and 37.3° vertical field of view for a 16:9 frame.
(Calculations were made with David Eubank's excellent pCam application!)
That geometry is tight, even with a 12x12in mirror, and it may not be possible for the Sony EX1 to avoid image clipping at wide angles.
An accurate measurement of location of the origin of the EX1 image cone, measured as a distance the front on the lens (housing), is needed.
The relative locations of the front of the lens, the optical axis of the lens, the camera mounting threads and the microphone/hotshoe housing are also needed.
These designs specify aluminum T-slot extrusions and brackets from 8020, Inc.
You could use any of a multitude of alternative framing options.
I have no affiliation with 8020 or any other entity mentioned in this page.
These designs are shared under a Creative Commons Attribution-ShareAlike 3.0 License.
