EF-M LENS Instructions
EF-M22mm f/2 STM
① Focusing ring
② Hood/Filter Mounting Thread
③ Lens mount index
Thank you for purchasing a Canon product.
The Canon EF-M22mm f/2 STM lens is a small fixed
focus length lens developed for interchangeable-lens
digital cameras compatible with EF-M lenses*.
* Only the following cameras are compatible with
EF-M lenses (as of July 2012):
"STM" stands for stepping motor.
Do not look at the sun or a bright light source
through the lens. Doing so could result in vision
loss or blindness.
Whether it is attached to the camera or not, do
not leave the lens under the sun without the
lens cap attached. This is to prevent the lens
from concentrating the sun’s rays, which could
cause a fire.
If the lens is taken from a cold environment
into a warm one, condensation may develop
on the lens surface and internal parts. To
prevent condensation in this case, first put the
lens into an airtight plastic bag before taking it
from a cold to warm environment. Then take
out the lens after it has warmed gradually. Do
the same when taking the lens from a warm
environment into a cold one.
Do not leave the lens in excessive heat such as
in a car in direct sunlight. High temperatures
can cause the lens to malfunction.
Please also refer to the handling cautions found
in your camera’s instructions.
Conventions used in this instruction
Warning to prevent lens or camera
malfunction or damage.
Supplementary notes on using the lens and
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1)
This device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired
Do not make any changes or modifications to
the equipment unless otherwise specified in the
instructions. If such changes or modifications should
be made, you could be required to stop operation of
This equipment has been tested and found to comply
with the limits for a class B digital device, pursuant
to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against
harmful interference in a residential installation. This
equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful
interference to radio communications.
However, there is no guarantee that interference will
not occur in a particular installation. If this equipment
does cause harmful interference to radio or television
reception, which can be determined by turning the
equipment off and on, the user is encouraged to
try to correct the interference by one or more of the
Reorient or relocate the receiving antenna.
Increase the separation between the equipment
Consult the dealer or an experienced radio/TV
technician for help.
This Class B digital apparatus complies with
1. Mounting and Detaching the Lens
Please mount and detach the lens only with the
camera turned OFF.
See your camera’s instructions for details on
mounting and detaching the lens.
After detaching the lens, place the lens with
the rear end up to prevent the lens surface and
contacts from getting scratched. (fig.❶)
If the contacts get soiled, scratched, or have
fingerprints on them, corrosion or faulty
connections can result. The camera and lens
may not operate properly.
If the contacts get soiled or have fingerprints on
them, clean them with a soft cloth.
If you remove the lens, cover it with the dust
cap. To attach it properly, align the lens mount
index and the
index of the dust cap as shown
in the diagram, and turn clockwise. (fig.❷) To
remove it, reverse the order.
2. Manual Focus
When the camera’s focus mode is set to [MF], focus
manually by turning the focusing ring (fig.❸).
Quickly rotating the focusing ring may result in
Focus mode is set using the camera. Please
refer to the camera’s instructions.
After autofocusing in [AF+MF] mode, focus
manually by pressing the shutter button halfway
and turning the focusing ring (full-time manual