Universal Optical System - CEI Color Six Operator's Manual

General Information for All Film Camera
Models
The CEI Universal Optical System provides the necessary
size and back focus adjustments to accommodate many film
cameras, such as the Arri 35-III, 535A, and BL. For other
models, such as the SR-3, optical adapters supplied by Arri
or Jurgens may be used.
When using an optical adapter provided by a manufacturer
other than CEI, the proper focal distance may be provided
through the use of an extender tube.
Caution: Remove any extender tubes before
installing the CEI Universal Optical System.

Universal Optical System

There are currently three generations of the CEI Universal
Optical System in the field, designated STD, XR and XI.
The type designation is found on the iris control ring with
the serial number. If the lens either has no serial number or
contains any serial number that does not include the letters
XR or XI, then it is an STD. The differences between the
generations are as follows:
• The XR is an improved version of the STD lens. The
improvement is primarily in the field flatness, providing
better resolutions in the corners of the picture.
Appendix
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