LowBudget Mirror Rig at DVinfo.net

Martin Hebermehl · December 8th, 2009, 08:34 AM

Hello and sorry for bad english.

Preproduction of my BS-Rig is finished.
Some work to do (Case and angle-adjustment of the beamsplitter i will do in the future).
You can see some pics at:

3drig

I have 2 XHA1 mounted on a aluminium rig with a adjustable distance range between 0 and 80mm. (the complete range is about 200mm, but because the xha1 has a big wideangel optic you can see the aluframes on the bottom if i change the distance over 80mm).

The Beamsplitter was delivered from a german company.
The only parts i´ve to build with a CNC was the distance items for the xha1. All other parts are standard items you can buy everywhere.

Not showing in the pictures: field monitoring and sync-box.
The field monitoring is a laptop with 2 DV-inputs and viewing with the stereoscopic multiplexer from 3dtv.at
Or i´m using my selfbuilded headmounted videoglasses (left monitor-left picture / right monitor-right picture).
"Sync" is done by the stefra-LANC.

Regards,
Martin

Adriano Apefos · February 6th, 2010, 09:11 AM

i like your rig
the 3d rigs are expensive and you found a way to do it
the beamsplitter rig is the only way to to good 3d to big screens

is your mirror 50/50 or is like the teleprompter mirrors 40/60 ?

how much was the mirror?

can you provide us the link to the mirror company?

thank you.

Pavel Houda · February 6th, 2010, 09:25 PM

Avatar aparently didn't use mirror rig, but of course they didn't have so big budget constraint. YouTube - The 3-D Camera Technology Behind James Cameron's Avatar

Adriano Apefos · February 8th, 2010, 08:14 AM

Thanks for this link

the rig is great, it changes convergence togheter as you do focus.

I saw Avatar without glasses in some moments and it seems they keep the convergence in the focus point all the time and convergence changes inside the same scene if needed. in this way all the cuts keeps confortable to the brain because the eye acomodation is always in the screen plane

Giroud Francois · February 8th, 2010, 08:53 AM

and it is the most easiest thing to do, the good old Nuview was doing that very fine.

Pavel Houda · February 8th, 2010, 06:18 PM

The new Panasonic one piece rig, not on the market yet is also side-by-side. The booth person mentioned that they'll not be changing inter occular distance, just convergence. He also mentioned that the keystoning effect will be corrected for in the camera immediately, so there would be no post processing impact. Here is a link to a short clip I took: YouTube - Panasonic 3D Camcorder - CES 2010 - YT3D Stereoscopic .

December 8th, 2009, 08:34 AM	#1
Martin Hebermehl Tourist Join Date: Nov 2009 Location: Munich Germany Posts: 2	LowBudget Mirror Rig Hello and sorry for bad english. Preproduction of my BS-Rig is finished. Some work to do (Case and angle-adjustment of the beamsplitter i will do in the future). You can see some pics at: 3drig I have 2 XHA1 mounted on a aluminium rig with a adjustable distance range between 0 and 80mm. (the complete range is about 200mm, but because the xha1 has a big wideangel optic you can see the aluframes on the bottom if i change the distance over 80mm). The Beamsplitter was delivered from a german company. The only parts i´ve to build with a CNC was the distance items for the xha1. All other parts are standard items you can buy everywhere. Not showing in the pictures: field monitoring and sync-box. The field monitoring is a laptop with 2 DV-inputs and viewing with the stereoscopic multiplexer from 3dtv.at Or i´m using my selfbuilded headmounted videoglasses (left monitor-left picture / right monitor-right picture). "Sync" is done by the stefra-LANC. Regards, Martin

February 6th, 2010, 09:11 AM	#2
Adriano Apefos Regular Crew Join Date: Jun 2007 Location: Belo Horizonte BRAZIL Posts: 154	i like it i like your rig the 3d rigs are expensive and you found a way to do it the beamsplitter rig is the only way to to good 3d to big screens is your mirror 50/50 or is like the teleprompter mirrors 40/60 ? how much was the mirror? can you provide us the link to the mirror company? thank you.

February 6th, 2010, 09:25 PM	#3
Pavel Houda Major Player Join Date: Mar 2009 Location: Laguna Hills, CA Posts: 352	Avatar aparently didn't use mirror rig, but of course they didn't have so big budget constraint. YouTube - The 3-D Camera Technology Behind James Cameron's Avatar Last edited by Pavel Houda; February 7th, 2010 at 01:14 AM.

February 8th, 2010, 08:14 AM	#4
Adriano Apefos Regular Crew Join Date: Jun 2007 Location: Belo Horizonte BRAZIL Posts: 154	Great rig Thanks for this link the rig is great, it changes convergence togheter as you do focus. I saw Avatar without glasses in some moments and it seems they keep the convergence in the focus point all the time and convergence changes inside the same scene if needed. in this way all the cuts keeps confortable to the brain because the eye acomodation is always in the screen plane

February 8th, 2010, 08:53 AM	#5
Giroud Francois Inner Circle Join Date: Feb 2004 Location: switzerland Posts: 2,133	and it is the most easiest thing to do, the good old Nuview was doing that very fine.

February 8th, 2010, 06:18 PM	#6
Pavel Houda Major Player Join Date: Mar 2009 Location: Laguna Hills, CA Posts: 352	The new Panasonic one piece rig, not on the market yet is also side-by-side. The booth person mentioned that they'll not be changing inter occular distance, just convergence. He also mentioned that the keystoning effect will be corrected for in the camera immediately, so there would be no post processing impact. Here is a link to a short clip I took: YouTube - Panasonic 3D Camcorder - CES 2010 - YT3D Stereoscopic .