Kimmeineche 0 Posted January 4, 2010 (edited) Hi Eric and others who are interested! As promised, I show you my top-side rig with the dual AF-S18-70mmED lenses and the cameras mounted to the hengeed alubar. Here is the rig seen from the front, with an extra bar beneath to strengthen the setup while walking arround, etc.. Here is the rig seen from the back... still with the bar to strengthen the setup. Here the extra bar is scewed off and the rig can be switched from landscape to portrait and back in a second. Here the rig is in portrait mode. Best regards again from Kim! :-) Kim - I'm also interested the separation distance between lenses (and what has worked best for you). I've tried shooting topside with dual SLRs and have had problems because the separation of lenses is so great -- around 5" is the closest I can get them, that that is shooting both vertically. They are even further apart when shooting horizontally. It would be fine if I were shooting large objects from very far away, but I've not found a way to get the lenses close enough together to shoot typical subjects that are close. Of course, it is easy to shoot 3D with two point & shoot cameras... This is all topside -- the optics may change underwater, of course... Also, my tests were with 20mm, 24mm and 35mm lenses. It may be that fisheye lenses are required with such great separation distances between lenses. Congrats on your success in shooting digital 3D underwater! Edited January 4, 2010 by Kimmeineche Share this post Link to post Share on other sites
mexwell 0 Posted January 4, 2010 (edited) Kim, those links are broken.... :-( EDIT: Now it works :-) Thanks! Edited January 4, 2010 by mexwell Share this post Link to post Share on other sites
Kimmeineche 0 Posted January 4, 2010 (edited) Are they still broken? I had some troubles just after posting.... but it seems to work here now! /Kim! :-) Kim, those links are broken.... :-( Edited January 4, 2010 by Kimmeineche Share this post Link to post Share on other sites
Kimmeineche 0 Posted January 4, 2010 Hi Mark! I've send you a personal mail on this... /kim! :-) Hi Kim, I tried to reply earlier, but don't see that appearing on the forum, so here goes again. If you communicate with Peter or Soren, please say hello. You should join in the UW 3D image folio we circulate. Ask Soren about it. I don't have any pictures of my UW3D SLR uploaded to a URL which I can link to. However, it's a "siamesed" camera in order to achieve a near "normal" stereo base of 72mm. The housing is custom and controls all functions. The key design feature, as I said, is the incomparable Rebikoff corrector lenses. They maintain the same angle of view as the taking lenses have in air, just like a dome port does, but they are much smaller and have none of the distortions associated with domes or flat ports. I have the mini versions of these correctors built by Dimitri Rebikoff specifically for stereo cameras. See images in his book "Underwater Photography". The first edition has the most pictures. The compact size of the Rebikoff correctors allows the closer lens spacing, and that allows getting closer to subjects. A dome suitable for a normal stereo base of about 65mm is approximately 36" in diameter, and thus impracticable for most purposes. The Imax camera housing can be fitted with such a dome. You asked about my digital rigs, and actually those are still in development phase. I am moving there, but not there yet. I may sell some of my film based systems, like the RBT S1b and housing, to support the digital push. You have probably seen Peter's S1b...he has the same thing. Best, Mark It should definaitely be interessting to see some pictures of your SLR-rig. What kind of digital rig have you made for underwater work? :-) Share this post Link to post Share on other sites
