Re: [PanoToolsNG] Action stereo spherical panos -- sync issues
- On Sun, 03 Aug 2008 19:57:02 +0900, panovrx <mediavr@...> wrote:
> A while back I put two Canon5D/10.5mm together (one on top of theI am impressed. The stereo panorama looks fine, so the system is clearly
> other inverted) at 180 apart to make 360*130 degrees timelapse
> sequences and this works pretty good sync wise in the overlap edge
> zone if the frame rate is
> slow enough -- eg. they will stay in sync for about 100 frames or so
> at 1 fps -- being fired by wired together releases. At 3 frames per
> sec (JPG) they will stay in sync for at least 25 frames. So I thought
> I would try spinning the 2 cameras in stereo camera mode ie pointing
> in the same direction -- at about 8 sec per revolution -- which
> would be short enough maybe I thought for one 360 in sync for a
> stereo action panorama.
> Here is about 180 degrees of a stereo action equi
> (for crosseye viewing)
> -- the rest of the pano has crowd blending (mono) stitching issues
> The sync when it is working is good -- < 2 or 3 msec I think.
> I think this is a practical idea and stereo action panoramas will be
> possible with digital slrs (they are certainly possible with film-
> based stereo panorama cameras but they cant do spherical) if I can
> build a very solid rotator that will keep the cameras aligned with
> each other and the rotation axis accurately throughout the rotation.
viable (if a bit pricey from where I sit...).
> If you are not worried about sync (ie no action) standardI agree; that accords with my (limited) experience.
> pano methods with a single camera shifted for the 2 views work fine
> I think with say < 10 degrees rotation per shot if subjects arent
> closer than 2m say for standard eye separation camera separation.
> For really accurate stereo panoramas of close subjects with aYes, fascinating! Thank you so much for this information. It is a real
> digital slr I think the strip assembly method I described recently
> would be better and certainly easier to stitch though longer to shoot.