Canon lens EFM 22mm f2 STM User Manual

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❷
❸ENG EF-M LENS Instructions
EF-M22mm f/2 STM
„… †
ƒ
Nomenclature
① Focusing ring② Hood/Filter Mounting Thread③ Lens mount index④ Contacts
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): 
EOS M
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"STM" 
 stands for stepping motor.
 Safety Precautions
• Do not look at the sun or a bright light source 
through the lens. Doing so could result in vision 
loss or blindness.
•
 
W
 hether 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.
Handling Cautions
• 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 
taking pictures.
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 
operation.
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 
the equipment.
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 
following measures:
•
 
Reorient 
 or relocate the receiving antenna.
•
 
Increase 
 the separation between the equipment 
and receiver.
•
 
Consult 
 the dealer or an experienced radio/TV 
technician for help.
This Class B digital apparatus complies with 
Canadian ICES-003.
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 
delayed focus.
• 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 
focusing).
CT1-8584-000
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0612Ni © CANON INC. 2012
3. Hood (sold separately)
The EW-43 hood cuts out unwanted light and protects 
the front of the lens from rain, snow, and dust.
Please attach the hood securely by either screwing it 
into the lens’ filter thread (43 mm in diameter) located 
at the front of the lens or screwing it into the filter 
thread (43 mm in diameter) of a filter that is attached 
to the lens (fig.
❹).
• Please attach and detach the hood and filter 
only with the camera turned OFF.
•
 
When 
 attaching or detaching the hood, grasp 
the base of the hood to turn it. To prevent 
deformation, do not grasp the rim of the hood to 
turn it.
4. Filters (sold separately)
A filter is attached by either screwing it into the lens’ 
filter thread or the front filter thread of the hood (43 
mm in diameter).
• Only  one filter may be attached.• The hood and filter can be attached in any order.
Specifications
Focal Length/Aperture22mm f/2
Lens Construction 6 groups, 7 elements
Minimum Aperturef/22
Angle of View Diagonal: 63°30′
Vertical: 37°50′
Horizontal: 54°30′
Min. Focusing 
Distance 0.15 m/0.49 ft.
Max. Magnification 0.21x
Field of View Approx. 72 x 109 mm/ 
2.83 x 4.29 inch 
(at 0.15 m/0.49 ft.)
Filter Diameter 43 mm
Max. Diameter and 
Length 60.9 x 23.7 mm/
2.40 x 0.93 inch
Weight Approx. 105 g/3.7 oz
Hood EW-43 (Sold Separately)
Lens Cap E-43
Dust Cap Lens Dust Cap EB
Case LP811 (Sold Separately)
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Equivalent 

to 35 mm in the 35mm film format.
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The 

lens length is measured from the mount 
surface to the front end of the lens. Add 19,5 mm 
when including the lens cap and dust cap.
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The 

size and weight listed are for the lens only, 
except as indicated.
•
 
Extenders 

cannot be used with this lens.
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Aperture 

settings are specified on the camera.
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All 

data listed is measured according to Canon 
standards.
•
 
Product 

specifications and appearance are subject 
to change without notice.
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