UW3D

With two cameras and a semi translucent mirror there is a big problem to overcome, namely image loss appears with change of the stereo base. It can be limited by converging one of the cameras, and apparently that is what this rig does.

Ciao

I have answered some of my questions about the housing.

Is there space is there between the camera front and the front port to insert a 77mm close-up lens? Not in the standard housing, but Equinox will build it on a longer tube, I think without additional cost.

Is the TD1 camera LCD screen folded open and visible inside the housing? The screen has to be open for the camera to operate, but it isn't visible thru the housing, and there is no viewfinder. If you use the Equinox external monitor, it's SD quality. More importantly, it does not show the parallax difference. Nor does any auxiliary 2D screen. IMO, the camera is unusable UW without the ability to view the parallax. Apparently, only an auxillairy 3D monitor will provide that, and none I know of are small enough yet to be practically housed.

No one I spoke to thought they could hack the camera LCD monitor to be detached so it can be placed where visible at the back port. It's on a flex ribbon cable and wrapped around the hinge. Very tricky to extend, even if you found a longer compatible flex cable.

Mark

What housing are you using?

I have not searched too hard yet, but the only off the shelf housing I've come across is the Equinox. It's a version of their H6 housing.

Here is a list of questions I have asked Equinox sales about the housing, but I have received no answers after a week.

1)      A) How much space is there between the camera front and the front port to insert a 77mm close-up lens?

B) If insufficient space exists, can you make the housing slightly longer for this and what’s the up-charge?



2)      A) Is the TD1 camera LCD screen folded open and visible inside the housing? (I read that the screen has to be open for the camera to operate).

B) Are either the top or rear mounted accessory monitors capable of displaying the “difference” between the two images for parallax detection, or are they strictly 2D?

        C) If the answer to 2. A and B are “no”, has anyone had any success hacking the camera monitor to be detached so it can be placed where visible at the back port?



3)      A) Is the housing neutral buoyancy with the camera;

B) If not, how much weight needs to be added to it?

C) Does the weight system require me to travel with the weight, or can it use “resort weights”?



4)      Where can I view sample video taken with the housing?



5)      What’s the effective focal lengths of the lenses UW through the flat port?



6)      A) The table of magnifications at the minimum and maximum focal lengths based upon the normal plane of convergence at 68 inches is known for the TD1 in air, but shooting through the flat port obviously changes the effective focal lengths and changes all the magnification outcomes. Has Equinox recalculated these when the camera is used in the housing underwater? If so, I’d like to review that information.



B) I have the same question for the camera/housing UW when using diopter lenses in plus 1 through plus 5 increments to reduce the distances to the planes of convergence?



C) If you have not calculated these magnifications/convergence points, but can tell me the effective focal length of the lenses UW through the flat port, I may be able to work them out for you.  


Looking forward to more information!

Mark