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» Film-Tech Forum   » Operations   » Digital Cinema Forum   » Dolby 3D or XpanD (Page 1)

 
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Author Topic: Dolby 3D or XpanD
Mike Moreno
Expert Film Handler

Posts: 180
From: culiacan sinaloa mexico
Registered: Jul 2008


 - posted 06-14-2011 12:54 PM      Profile for Mike Moreno   Author's Homepage   Email Mike Moreno   Send New Private Message       Edit/Delete Post 
wich technology would you choose if you are going to install a 3D projector.

mike moreno

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Kris Verhanneman
Expert Film Handler

Posts: 182
From: Belgium
Registered: Dec 2009


 - posted 06-14-2011 12:55 PM      Profile for Kris Verhanneman   Email Kris Verhanneman   Send New Private Message       Edit/Delete Post 
dolby 3D

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Frederick Lanoy
Film Handler

Posts: 85
From: North of France
Registered: Aug 2009


 - posted 06-14-2011 03:21 PM      Profile for Frederick Lanoy   Email Frederick Lanoy   Send New Private Message       Edit/Delete Post 
Go Dolby : great results on screen. Active glasses = too many issues.

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Olivier Lemaire
Expert Film Handler

Posts: 118
From: Paris, Ile de France, France
Registered: Jan 2010


 - posted 06-14-2011 05:48 PM      Profile for Olivier Lemaire   Author's Homepage   Email Olivier Lemaire   Send New Private Message       Edit/Delete Post 
Want to be able to change you 3D system from one screen to another, in less than 10 minutes -> XPanD.

Else, Dolby 3D/Master Image/RealD

my 2 cents [Smile]

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Ken Lackner
Phenomenal Film Handler

Posts: 1875
From: Atlanta, GA, USA
Registered: Sep 2001


 - posted 06-14-2011 06:01 PM      Profile for Ken Lackner   Email Ken Lackner   Send New Private Message       Edit/Delete Post 
Master Image and Real D are both polarized, so unless you have a silver screen in every auditorium, or you can change one in 10 minutes, you're still stuck with the original house.

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16115
From: Bountiful, Utah
Registered: Jun 99


 - posted 06-14-2011 08:46 PM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
Active glasses such as Expand's have many issues but the results are amazing and no filters are involved. As for Dolby it all depends on how large your screens are. Dolby is not very practical on screens much wider than 40 feet although some have done it. Dolby will even tell you they do not reccomend it.

From an ease of operation standpoint Real-D has been best for my customers with large busy plex's with multiple 3-D screens. Glasses are free. I don't know what kind of deals they do on the adaptors south of the border, you'd have to contact them... Silver screens required and things will work better if they are curved. Severtson Screens are located in Tuscon and they have much quicker turn around because of recent plant size increase and modernization. Their silver surfaces are excellent.

Of course you can do 3-D without any glasses too...
3-D Without Glasses
I want to see everyone in an audience sitting there blinking their eyes that fast! [Wink]

Mark

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Ken Lackner
Phenomenal Film Handler

Posts: 1875
From: Atlanta, GA, USA
Registered: Sep 2001


 - posted 06-14-2011 09:12 PM      Profile for Ken Lackner   Email Ken Lackner   Send New Private Message       Edit/Delete Post 
Ahaha. Nice. Surely that was a joke, right? I mean, the video did not at all have the look and feel of your typical parody videos on YouTube, but they just can't be serious.

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Jean-Marc Toussaint
Film Handler

Posts: 60
From: Paris, France
Registered: May 2008


 - posted 06-15-2011 02:55 AM      Profile for Jean-Marc Toussaint   Author's Homepage   Email Jean-Marc Toussaint   Send New Private Message       Edit/Delete Post 
I'd be cautious with Master Image. If something gets on that polarizing disk, it will either scratch it or create unwanted light artefacts on the projected picture (recent experience).
Dolby remains also my favorite but as Mark says, not recommended for large screens. It might be worth investigating Panavision 3D, as it uses the same kind of system but could be more interesting price wise. Glasses (or goggles in that case) don't look really hip. In both cases (Dolby and Panavision), projectors need to be modified to acomodate the rotating colour wheel.
If you go active, have a look at Eyes3shut. Essentially similar to Xpand or Volfoni. The cool thing about this system is that they don't use disposable batteries. Glasses are stored on racks that act as recharging devices so they are supposedly ready to go for 40 hours.

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Catalin Balaceanu
Film Handler

Posts: 36
From: Pascani, Iasi, Romania
Registered: Mar 2006


 - posted 06-15-2011 03:12 AM      Profile for Catalin Balaceanu   Author's Homepage   Email Catalin Balaceanu   Send New Private Message       Edit/Delete Post 
Haha! That's gotta hurt at some point.

As far as what 3D system to go for, we went for Xpand for the following reasons:
- no need to change your original screen (no need for silver screen)
- I wasn't THAT impressed with Dolby 3D - it's just a personal opinion, but I still had a slight feeling that I had anaglyph glasses on, while wearing dolby glasses.
- I was impressed with the Xpand picture quality
- Xpand has a better light efficiency then Dolby
- slightly lower price then other 3D packages
- now Xpand has included a number of glasses in the package (you can go for 150, 200, or whatever number of included glasses in the 3D package)

Ofcourse, every 3D package has its own pros and cons, which had been discussed all over this forum.

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12089
From: Annapolis, MD
Registered: Dec 1999


 - posted 06-15-2011 06:17 AM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
One can go beyond 40-feet on Dolby BUT you better be thinking multiple projectors. And like with all gain screens, if you are installing a gain screen to improve the light throughput, you HAVE to curve it or all of your gain will be in the middle.

Ease of use...Dolby and Xpand are amost inherently automatic (with Xpand, if you are running a 2D show...just don't hand out the glasses). All of the Dolbys incorporate a means for automatically switching between 2D and 3D. Master Image can be automatic though the earlier mechanisms made that more difficult...the current ones are much easier BUT you will need an automation of some sort (or GPIOs that you can control easily and program as you need). Real-D is the least automatic, inherently. However Strong has developed motorized system for them (about a $1000) for either the XL or the Z screen (separate part numbers).

My personal preference is Dolby 3D BUT you do need to make sure you have enough light, it is the least efficient (8-10% throughput on a single projector system, depending on color correction). If you have side masking (wider scope image), USE AN ANAMORPHIC...there is a 23% light improvement from that alone.

-Steve

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Frank Cox
Phenomenal Film Handler

Posts: 1945
From: Melville Saskatchewan Canada
Registered: Apr 2011


 - posted 06-15-2011 11:30 AM      Profile for Frank Cox   Author's Homepage   Email Frank Cox   Send New Private Message       Edit/Delete Post 
quote: Jean-Marc Toussaint
Glasses are stored on racks that act as recharging devices so they are supposedly ready to go for 40 hours.
Rechargable batteries of any kind have a finite lifetime. After a period of time (greater or lesser depending on many factors) they will start accepting less and less of a charge, until they simply won't charge any more at all.

Of course, depending on the quality of the glasses themselves, the batteries may out-last the glasses anyway.

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Mike Moreno
Expert Film Handler

Posts: 180
From: culiacan sinaloa mexico
Registered: Jul 2008


 - posted 06-15-2011 11:46 AM      Profile for Mike Moreno   Author's Homepage   Email Mike Moreno   Send New Private Message       Edit/Delete Post 
thanks all of you guys

Mike moreno
[beer]

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Carsten Kurz
Film God

Posts: 3684
From: Cologne, NRW, Germany
Registered: Aug 2009


 - posted 06-16-2011 07:24 PM      Profile for Carsten Kurz   Email Carsten Kurz   Send New Private Message       Edit/Delete Post 
The current Dolby 3D is licensed from german company Infitec. Infitec has just demo'd an improved system with a much improved light efficiency - around or even better than RealD XL, and less colorshift.
It is not yet clear wether Dolby will also adopt the new system for cinema as a 'Dolby 3DmkII'. It will need new filter wheel and glasses so it's not compatible with the previous systems and cinemas would need full dual inventory (or replacement).
More players are entering the 3D arena.

- Carsten

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David Stone
Film Handler

Posts: 75
From: Hornsby, Sydney, Australia
Registered: Jun 2008


 - posted 06-17-2011 01:20 AM      Profile for David Stone   Email David Stone   Send New Private Message       Edit/Delete Post 
HI Everyone,

It depends which way you look at it. Does anyone want to purchase a 3D system with the way 3D box office is heading. As an owner who writes the cheques, RealD is the only way to go. Yes you pay a license fee for 5 years, but they own and maintain it for free,how much does a dolby color wheel cost to replace, what is the cost to have staff wash and collect glasses at the end of each session, how do you ask a patron to pay for missing or broken glasses at the end of a session during collection.

RealD is a simple pay as you use system.

Cheers,

David.

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12089
From: Annapolis, MD
Registered: Dec 1999


 - posted 06-17-2011 05:15 AM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
Because, in less than a year, you'll spend more with Real-D than you would have with Dolby. So yes you MAY end up purchasing equipment that you no longer need in a few years BUT it is cheaper to buy it and throw it away than to effectively lease the Real-D system for a year or more.

-Steve

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