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70mm film projection at the “Leokino 1”

Read more at
in70mm.com
The 70mm Newsletter
Written by: Dietmar Zingl, Innsbruck, Austria Date: 01.11.2008
Dietmar Zingl, manager of the Leokino in Innsbruck in April 2008 at the Kino Mir 70, in Krnov. Image by Thomas Hauerslev

The “Leokino 1” got the biggest auditorium within the cinemas of the “Otto-Preminger-Institute”. Its screen is slightly bend, following the later recommendations for 70mm installations and still amazing with a visual difference to the flat screens of today.

Two 35/70-projectors are housed in the wide projection room. They are Todd-AOs original Philips DP70 and with the serial numbers 2286 and 2289 two of the latest production. A sophisticated control system - a in house development - is supporting the projectionist with frame accurate changeover and sound format control - but without the necessity to put foil onto film parts that are projected. The two projector changeover system is working without a platter. The print runs through, facing the well proven 'reel to reel', but improved by a modern winding system, being capable to handle up to 2000m.

Not only all common 35mm image and sound formats can be presented, also the various 70mm formats are supported the right way. Original Philips sound heads - still in good condition - are picking up the magnetic sound information. A Dolby MPU fully stuffed with Cat. No. 92, reworked and calibrated by SCS (Scherer Cinema Systems) for reliable and improved performance, is doing the standard equalizing and preamplifying. Next link in the chain is the SCS6051 analogue sound processing unit, which allows the 5-channel front sound to be reproduced by the Dolby CP500 digital sound processor, having every channel to appear at the right position of the screen. The sound is blown from the stage by THX certified Variplex-B three-way systems, supported by JBL subwoofers, driven by P1250 and P2000 EV power amplifiers.

The latest 70mm-prints are shipped with dts digital sound. These prints are presented using a 6D-SV dts sound processor. Beside the standard 5-channel digital sound, the supported 'special venue' feature allows full 6-channel playback, restoring the original Todd-AO sound layout in the auditorium.
 
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Internet link:

Dietmar Zingl
Otto Preminger - InstitutVerein für audiovisuelle Mediengestaltung(CINEMATOGRAPH FILMVERLEIH/ LEOKINO/ CINEMATOGRAPH)

Postadresse:

Leokino
Innrain 37a
6020 Innsbruck
Austria

Tel.: +43-512-560470

Supported 70mm sound formats:

 
Todd-AO 6 wide-band channels
Dolby A 6.0 6 wide-band channels, Dolby A encoded (Dolby Sound Format 41)
Dolby A 4.1 4 wide-band channels, baby boom, Dolby A encoded (DSF 42)
Dolby A 5.1 5 wide-band channels with split surround, baby boom, Dolby A encoded (DSF 43)
dts digital 5 wide-band channels with split surround and subbass
dts digital SV 6 wide-band channels with Todd-AO layout
 
 
 
 
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Updated 22-12-16