A lot of comments I have read about 3D shooting betray a lack of knowledge of the process. 1. The lens separation you need depends on the size of what you're shooting and how far away it is. Big and/or far=bigger separation. 2. Too much separation= unviewable shots. Oversimplified rule of thumb: separation NOT TO EXCEED 1/30 distance to subject, and that means nearest part of subject in picture. In general less is more. 3. Each picture (L&R) needs a frame. These two frames should be spaced slightly (1.2mm, in 35mm format) further apart than the lens spacing ("Base"). Old Stereo Realists had two square apertures in the film plane spaced 71.2mm, lens base was 70mm. The two apertures project to coincidence about 7 ft. in front of the camera, nothing in scene should be closer than that. Digital 3D shots can be digitally cropped to the same purpose. Question: does anyone know if the Horseman 3D camera has proper film plane masking? 4. Absolutely simultaneous 3D pairs are absolutely necessary if anything in the scene moves. Slide bar and chacha shots have their uses, but if anything moves in the scene (waterfall,etc.) or you want to shoot by electronic flash, s-b and chacha don't cut it. Too bad some camera company doesn't make a factory 3D digital camera with both sensors slaved off the same computer, and in the same housing, so they are optically aligned and time synchronized.
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A lot of comments I have read about 3D shooting betray a lack of knowledge of the process.
1. The lens separation you need depends on the size of what you're shooting and how far away it is. Big and/or far=bigger separation.
2. Too much separation= unviewable shots. Oversimplified rule of thumb: separation NOT TO EXCEED 1/30 distance to subject, and that means nearest part of subject in picture. In general less is more.
3. Each picture (L&R) needs a frame. These two frames should be spaced slightly (1.2mm, in 35mm format) further apart than the lens spacing ("Base"). Old Stereo Realists had two square apertures in the film plane spaced 71.2mm, lens base was 70mm. The two apertures project to coincidence about 7 ft. in front of the camera, nothing in scene should be closer than that. Digital 3D shots can be digitally cropped to the same purpose. Question: does anyone know if the Horseman 3D camera has proper film plane masking?
4. Absolutely simultaneous 3D pairs are absolutely necessary if anything in the scene moves. Slide bar and chacha shots have their uses, but if anything moves in the scene (waterfall,etc.) or you want to shoot by electronic flash, s-b and chacha don't cut it. Too bad some camera company doesn't make a factory 3D digital camera with both sensors slaved off the same computer, and in the same housing, so they are optically aligned and time synchronized.