Last updateSat, 25 May 2019 4pm


Introducing – Tools for Cinema Quality Assurance


Cinema Test Tools for the Non-Technical Manager 

Cinema Test Tools is a free resource for the cinema industry, tuned most particularly for the non-technical manager. The tools include several DCPs, all with interesting means of testing the sound and picture quality for the interested by lightly trained staff. The lessons on sound and light are written to provide a foundation to communicate with the technician who must respond quickly and well to the information that they discover.

The key is a free Online Managers Online Walk Through Checklist that correlates with the many DCPs. It helps bring an understanding of the many nuances of the auditorium's situation in a straightforward way. 

Lasers, Christie, IBC...Silver Screen Why [Update 2]

We are heartened by the consistent heartbeat of laser systems being shown at events, each time getting more and sometimes even better. This time, IBC will see Christie's first laser exposition, an anticipated move since their parent company Ushio bought the California laser company Necsel late in 2010. On Monday night of IBC 2012, Christie will be showing a 3D version of the movie Hugo which they are billing as the world's first showing of a complete motion picture in laser 3D.

We aren't heartened by the announcement that they are using a high gain screen, which has the following effect [drawing updated in Update 2 of this article -Ed.], shown in the graphs and attempted to visualize in the drawing of the RAI Auditorium. If a high gain screen wheren't enough, they are also using a silver screen, which just makes niggling problems worse.

Many questions.

Some answers:   [Other answers in Tripping Over the Laser Light – Fantastic~!]

Output is 63,000 lumens from a modified 4230 projector, which normally has ~34,000 lumens. The 6 x ~10,000 lumen laser elements are given 60 amps/3 phase, in what seems to be a 2+ meter rack. The lasers are collumated to white, then divided again. The mirrors are said to be specially cooled to handle the extra power.

The screen is 2.4 gain, silver, and 16 meters wide. The content is standard 24 fps/eye, triple flashed. XPAND system. Remastered for higher light level...but we don't know the mastering level.

Even though there are a few seats in the cinema which are getting 48 candela (what the Americans call 14 foot-Lamberts), most of the viewers aren't getting close to that. Does the studio master to those few sets of eyes or do they master for an average.

We also don't know, and are very interested in, the science of the magic multiple, random frequenciy vibrators lined up in three rows across the back of the screen. We can understand that it would have the effect of 'defocusing' the speckle of the lasers, especially in the green band. But it really needs explaining.

Notwithstanding, we look forward to seeing the presentation. It is a milestone regardless of how they pull it off. And you just have to love the science of it all.

Follow-up Article: Tripping Over the Laser Light–T'was Fantastic~!

Don't miss: CineTechGeek » Demonstration of Silver Screen compromise

RAI auditorium with high gain screen diminishment...and silver too~!