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Last updateThu, 21 Dec 2017 2pm

 

Introducing – Tools for Cinema Quality Assurance

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Cinema Test Tools for the non-Technical Manager – Post Installation Quality Assurance Has Begun

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 Managers 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. 

Uncountable little pieces of experience add to a wealth of knowledge that should be shared for the betterment of the community. Please contribute.

Released en francais: DCinema Technical Best Practices [Updated]

Now In English, translated from the french by the EDCF – European Digital Cinema Forum; This excellent guide from the Federation National Cinemas Francais (FNCF) and the Commission Superieure Technique de l'Image et du Son (CST): TECHNICAL GUIDE FOR THE PROJECTION BOOTH IN DIGITAL CINEMA – Click the attachment link below.

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La luminance de toutes les images, dans tous les formats de projection, doit être calibrée à 48 cd/m2. Le projecteur doit permettre la création de cette luminance.

The Federation of Cinemas and the Commission of Best Practices (La fédération des cinémas et la commission supérieure technique) has released a comprehensive document called The Technical Guide for the Digital Cinema Projection Booth (le Guide technique de la cabine cinéma numérique). The quote above, as an example, says that:

"The luminance of all images, in all the formats of projection, must be calibrated at 48 candelas per square meter. The projector must permit the creation of that luminance."

And which professional digital cinema projector doesn't create that level of light? One that is projecting a 3D movie would fit into that category. Please ask your local cinema manager if they are showing the latest movie at the required 14 foot-Lamberts (the 48 candela/m2 equivalent that the US and England uses) like they are supposed to.

If you are signed in, you can download the PDF version of le Guide technique de la cabine cinéma numérique here.

Scotopic Issues with 3D, and Silver Screens

SMPTE and DCI specs notwithstanding, measuring an auditorium is an art, not a science. Even a non-silver screen with gain is going to have a sweet spot, made even more apparent as the angle of the projector to the screen increases. 

3D and silver screens make this even more 'interesting', something that the Laws of Physics often do to our best hopes.

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DCinema Daily/Monthly Inspection Forms Available

Standard Procedures and Routines require Standard Forms. The DCinemaCompliance Group has developed a set of forms and the databases to store them in.

These forms are put in the Public Domain with the GNU Copyright. They are every persons dream for making certain that your facility stays in compliance with the pertinent SMPTE and DCI Specifications.

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