Basic Precautions - ARRI ALEXA Series User Manual

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17.1.1.2 Basic precautions

CAUTION! Risk of damage and injury from improper
lenses!
PL mount lenses with more than 31.50 mm mounting depth, might
damage internal filters and the camera. Shards from broken filter glass
might cause injury.
Always check the lens mounting depth before mounting or changing a
lens.
CAUTION! Risk of damage and injury from insufficient
shimming!
All internal filters require a properly shimmed lens mount. Otherwise,
even PL mount lenses with a nominal mounting depth of less than
31.50 mm might damage internal filters and the camera. Shards from
broken filter glass might cause injury.
To ensure maximum allowable lens mounting depth, and to avoid
damage or injury, always shim your camera correctly (see Chapter
Shimming the lens mount on page 228).
The proper IFM-1 Shim comes with all three FSND Filter Sets (Basic,
Full or Completion), with the upgrade kit for ALEXA Classic cameras
(Internal Filter Module (IFM-1) Set) and is also available individually.
Use only this original shim when filtering with IFM-1.
CAUTION! Risk of damage from improper tools,
materials or negligence!
In-camera filters are very delicate. Always handle them very carefully
and with proper tools (e.g. the original Ground Glass/Frameglow tool).
Never touch the filter glass with bare fingers (sweat and physical
contact might damage the sensitive coating).
Check and clean each filter before and after use. Store it properly. Use
only original ARRI cleansing utensils and materials (others might
damage the filter).
When using IFM-1 and internal filters:
ALEXA XT Cameras