ENG-7
“C” and “H” Markings
Adjacent to the zoom ring, the “C” and “H”
markings serve as guides to indicate the wide-
angle zoom position where focus is set at infinity
at which photos can be created without
vignetting when using EOS digital cameras
installed with APS-C or APS-H image sensors.
The “C”/”H” indicator on the zoom ring is aligned
with either the “C” or “H” marking.
Zoom Limiter
The zoom limiter function allows for wide-angle
photos to be created when focus is set at infinity
without vignetting when using an EOS digital
camera installed with an APS-C image sensor by
limiting the zoom range.
Activate the zoom limiter by setting the zoom ring
to between 10mm and 15mm, then slide the
switch towards “LIMIT.”
Zooming
When the “C” / ”H” indicator above the focus ring
is aligned with either the “C” or “H” marking, there
are times when vignetting occurs in the corners of
an image since the size of the image circle
becomes smaller when the focus position is set at
close range due to the optical characteristics of
this lens.
The zoom limiter cannot be used if the zoom ring
is set between 8mm and about 10mm (when the
“C” / “H” indicators on the zoom ring are set
between the “C” indicator and the wide-angle
direction on the ring next to the zoom ring).
