Irix 11 mm f/4.0 User Manual

Extended User Manual – Irix 11 mm f/4.0
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FOCUS LOCK RING
The focus lock ring allows you to x the focusing
ring in a selected position. This innovative feature
helps prevent accidental movement, resulting in
focus shift.
You may want to use the focus lock during long
exposures, time-lapse imaging, or whenever re-
petitive shots are called for. You can also use it to
avoid changing the focus setting while mounting
or removing the lens or to retain the focus setting
when storing it in a bag, case or backpack.
Landscape photographers, street photographers
and journalists can utilize the focus lock to keep
the lens at the innity setting or hyperfocal distan-
ce for a given aperture.
To use the focus lock ring, turn the ring clockwise
until you feel a mechanical resistance which may
vary depending on the ambient temperature.
CAUTION: Do not turn the focus lock ring out of the center mar-
ker or use excessive force. This may damage the locking mecha-
nism of the focus ring as well as make it more dicult to release
the focus ring lock.

Irix 11 mm f/4.0 Specifications

General

Brand	Irix
Model	11 mm f/4.0
Category	Lenses
Language	English