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» Film-Tech Forum ARCHIVE   » Operations   » Digital Cinema Forum   » Picture size issue with D-Cinema (Page 2)

 
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Author Topic: Picture size issue with D-Cinema
Demetris Thoupis
Phenomenal Film Handler

Posts: 1240
From: Aradippou, Larnaca, Cyprus
Registered: Apr 2001


 - posted 03-06-2010 06:41 AM      Profile for Demetris Thoupis   Email Demetris Thoupis   Send New Private Message       Edit/Delete Post 
Actually its worth spending about 3 to 4 hours touching up on Masking, light, color correction and making sure all your damn Macros work perfect every time. Making a rush installation is NOT an option.
Demetris

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Carey Barber
Expert Film Handler

Posts: 143
From: Newport News, VA, USA
Registered: Jan 2003


 - posted 04-10-2010 10:00 AM      Profile for Carey Barber   Email Carey Barber   Send New Private Message       Edit/Delete Post 
I am having a similar problem, except it is 3D SCOPE that does not fill the screen.

The equipment is:
Barco DP3000 (about a year and a half old)
Doremi / DTS server
Real D 3D

When running 3D SCOPE there are black borders on all four sides. All other formats fill the screen fine -- 2D FLAT, 3D FLAT, and 2D SCOPE. The lens is zoomed out as far it can go.

We have one other D-Cinema projector, a Barco DP2000, that fills the screen with all formats.

What is going on here?!?! [Confused]

EDIT: I read about the EFIB boards and their limited resolution on this thread and elsewhere, but was not sure if that applied to my situation or not...

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Elise Brandt
Expert Film Handler

Posts: 160
From: Kuusankoski, FIN/ Kouvola, Finland
Registered: Dec 2009


 - posted 04-10-2010 10:55 AM      Profile for Elise Brandt   Email Elise Brandt   Send New Private Message       Edit/Delete Post 
I may be way off here, but I'm guessing the Barcos are all quite similar. Check if you 3D SCOPE and 2D SCOPE are using the same lense file. If they're not, change the 3D one to match the one you have on the 2D. Or just erase the lense file from that macro copletely, put on the 2D SCOPE and rewrite the macro using those settings.

I'm thinking it's always a bad thing to have the lense zoomed in or out as far as it can go, we did that and had all kinds of stuff go awry, like the dowser sticking and lamp not striking right... (yea that doesn't happen anymore, thanks to Mr, Siponen and his tweaking)

If I'm way off somewhere or just stating the obvious, I'm sure someone will let me know quite shortly.

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Demetris Thoupis
Phenomenal Film Handler

Posts: 1240
From: Aradippou, Larnaca, Cyprus
Registered: Apr 2001


 - posted 04-10-2010 01:22 PM      Profile for Demetris Thoupis   Email Demetris Thoupis   Send New Private Message       Edit/Delete Post 
Actually your DP3000 most probably does not support full frame tripple flash. If you are zoomed to the max and you cannot fill the image I recon the technician set it for tripple flash without resizing the image on the DMD chip to accomodate for the loss. You should call your check to come to change the 3D processing to double flash to be able to project the whole image. And yes the issue most probably is with the EFIB board. In triple flash on scope is not so much cut off as Flat on this generation of projectors.

Elise the lens files usually are different! Especially if you have a common height screen for both flat and scope. If you have a common width screen then you could get away with using the same lens file although that is not preferable.
Demetris

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Elise Brandt
Expert Film Handler

Posts: 160
From: Kuusankoski, FIN/ Kouvola, Finland
Registered: Dec 2009


 - posted 04-11-2010 06:02 AM      Profile for Elise Brandt   Email Elise Brandt   Send New Private Message       Edit/Delete Post 
Demetris; for example our 2D and 3D lense files are the same, go figure. Hey, I don't know why that is [Big Grin] but I use what I see. I was thinking that might be the case here too; that they could use the other SCOPE file (that fills the screen) as a base for building a new setting for the 3D.

Out of curiosity; do you know if the 3D type used affects the outcome? RealD was mentioned here, we use Xpand. I don't think there is a difference between the two in this case but I don't know. I'm assuming you might [Big Grin]

(Edited: read it myself again and thought I really expressed myself badly. Tried again)

Had something else to ask in mind but it slipped my mind. Hmph.

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Kris Verhanneman
Expert Film Handler

Posts: 182
From: Belgium
Registered: Dec 2009


 - posted 04-11-2010 07:56 AM      Profile for Kris Verhanneman   Email Kris Verhanneman   Send New Private Message       Edit/Delete Post 
Elise, the only difference is when you use a DP3000 projector. Due to the fact that it is not full DMD in triple flash you need to zoom more in 3D than in 2D.

But somehow I'm not sure everybody installes the projectors the same way.

For the people who installe projectors on this forum, what would you prefer. Configuring to get the full screen (but using the outer limit of the lens) or leaving a small black edge on the screen (and not to use the limit of the lens)?

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Demetris Thoupis
Phenomenal Film Handler

Posts: 1240
From: Aradippou, Larnaca, Cyprus
Registered: Apr 2001


 - posted 04-11-2010 08:35 AM      Profile for Demetris Thoupis   Email Demetris Thoupis   Send New Private Message       Edit/Delete Post 
First of all it suck when you don't project the full image. Even when tripple flashing in 1st generation DP3000 units, you still LOOSE image. If you have the Dolby Masking files you can see that immediately. When tripple flashing you need to extremely resize the image on the chip to be able to get the full image projected (and then it means that you have to zoom to very extremes). Zooming is not prohibited. I think that Real D only works on tripple flash and not double flash like Dolby for example does (Dolby can work in both tripple 6:2 multiplication or double 4:2 multiplication). Elise, your Barco is 0.98'' chip and accepts full frame double or tripple flash. If you also have a common width screen (same width on scope and flat) you can get away with using the same lens file. I found that the masking files of the Dolby are the most reliable way to mask and resize and zoom. By the way, new generation DP3000 does support full frame tripple flash as well as 2nd generation 2K/4K upgradable units. Will 4K ever come into production nobody knows.
Demetris

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Elise Brandt
Expert Film Handler

Posts: 160
From: Kuusankoski, FIN/ Kouvola, Finland
Registered: Dec 2009


 - posted 04-11-2010 08:50 AM      Profile for Elise Brandt   Email Elise Brandt   Send New Private Message       Edit/Delete Post 
actually we have the same height for scope and flat, not width.

Wait -you're not talking about using the same file for flat and scope, are you? That's definitely not the case, just using the same file for scope and scope 3D. For some reason it works although I'm not sure it should.

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Demetris Thoupis
Phenomenal Film Handler

Posts: 1240
From: Aradippou, Larnaca, Cyprus
Registered: Apr 2001


 - posted 04-11-2010 09:48 AM      Profile for Demetris Thoupis   Email Demetris Thoupis   Send New Private Message       Edit/Delete Post 
Ok you confused me before. Lets state the obvious.
In standard cases you should use the same lens file for 2D scope or 3D scope.
You should use another file for 2D flat and 3D flat.
2 separate files. 1 for Flat and 1 for scope irrelevant of 2D or 3D content. This is the case when you use 0'98 chip which can use the full spectrum of the chip in all cases. When you use a 1.2'' chip which is configured as tripple flashed in 3D and cannot handle full frame (old generation) then you need 4 separate lens settings. 1 for 2D flat, 1 for 3D flat, 1 for 2D scope and 1 for 3D scope. If you use new engines which support full frame tripple flash on 1.2K chips then you should use the standard case, 2 files only, one for scope and one for flat irrelevant of 2D or 3D.
Hope that clears it.
Demetris

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Elise Brandt
Expert Film Handler

Posts: 160
From: Kuusankoski, FIN/ Kouvola, Finland
Registered: Dec 2009


 - posted 04-11-2010 10:00 AM      Profile for Elise Brandt   Email Elise Brandt   Send New Private Message       Edit/Delete Post 
Exactly. We're agreeing but I'm guessing it's my not-so-perfect choice of words that threw you off my meaning.

What I was wondering before is that if the 2D scope fills the screen but the 3D scope doesn't, using the same file n both might just fix the problem or at least allow some change. Or not! Half the time I think these machines won't think like they should...

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999


 - posted 04-11-2010 12:44 PM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
I am unaware of ANY DP3000s that can do full frame triple flash.

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Kris Verhanneman
Expert Film Handler

Posts: 182
From: Belgium
Registered: Dec 2009


 - posted 04-11-2010 03:58 PM      Profile for Kris Verhanneman   Email Kris Verhanneman   Send New Private Message       Edit/Delete Post 
If some are able, how can you very that?

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Demetris Thoupis
Phenomenal Film Handler

Posts: 1240
From: Aradippou, Larnaca, Cyprus
Registered: Apr 2001


 - posted 04-12-2010 01:19 AM      Profile for Demetris Thoupis   Email Demetris Thoupis   Send New Private Message       Edit/Delete Post 
I know the OEM version now is capable for full frame tripple flash.
Demetris

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