Barco Prometheus I Safety & Instruction Manual page 83

How to adjust the Back Focal Length?
1. Unlock and loosen the 4 set screws (reference 11 image 5-28) of the Lens Holder by 1 centimeter. Use a 10mm nut driver for
the lock nuts (reference 21 image 5-28) and use a 3mm Allen wrench for the set screws.
Image 5-28
2. Fully loosen the Scheimpflug nut at the lower left of the Lens Holder (reference 4 image 5-29). Use a 13mm nut driver.
4
Image 5-29
3. Turn the three Scheimpflug adjustment nuts, reference 1, 2 and 3 image 5-30, until the front of the nut (reference 5 image 5-30)
is equally aligned with the front of the threaded rod (reference 6 image 5-30). Use a 13mm nut driver.
Note: This is the nominal position of the Lens Holder.
1
4
Image 5-30
4. Zoom the lens for maximum image on the screen (WIDE) and focus the center of the projected image using the motorized focus
control (Local Keypad).
R5905963 PROMETHEUS SERIES 09/03/2015
11
4
2
3
21 11
1 2
5. Lenses & lens holder
3
3 x
3 x
5
6
79