Canon EF 100mm f/2.8 Macro USM User manual

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EF100mm f/2.8
Thank you for purchasing a Canon product.
The EF50mm f/2.5 Compact macro is a macro lens that can be used for
standard shooting and for close-up shooting up to 1/2 × (0.5×). This is a
standard macro lens for EOS cameras. Lifesize magnification (1×) is also
possible by attaching the Life Size Converter EF sold separately.
The Canon EF100mm f/2.8 Macro is a medium telephoto macro lens that
provides life-size close-up capability.
Safety Precautions
1. Do not look at the sun or a bright light source through the lens
or camera. Doing so could result in loss of vision. Looking at the
sun directly through the lens is especially hazardous.
2. 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.
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.
1. Mounting and Detaching the Lens
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.
• 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, and turn
clockwise. To remove it, reverse the order.
2. Setting the Focus Mode
To shoot in autofocus (AF) mode, set the focus mode switch to AF ❸.
To shoot in manual focus (MF) mode, set the focus mode switch to MF,
and focus by turning the focusing ring.
• Do not touch the rotating parts of the lens while AF is active.
3. Switching the Focusing Distance Range
(EF100mm f/2.8 Macro only)
FULL: Allows a focusing distance range of 0.31 m (Min. focusing
distance) to ∞for standard shooting ❹.
LIMIT: Allows a focusing distance range of 0.31 m (life-size) to 0.57 m
(0.25×) for close-up shots.
4. Close-up Photography (Macro Photography)
Close-up photos are possible up to 0.5× maximum magnification with the
EF50mm f/2.5 Compact macro, and up to 1× (life-size) magnification with
the EF100mm f/2.8 Macro. The focusing distance is the distance from the
subject to the film plane.
When focusing, you can give priority to framing or to magnification.
[Framing Priority]
While looking through the viewfinder and framing the subject, focus with
the AF or MF mode.
[Magnification Priority]
(1) Set the lens’ focus mode switch to MF.
(2) Set the magnification.
While referring to the distance scale on the lens, turn the focusing ring
to the desired magnification.
(3) Focus the subject.
While looking through the viewfinder, move the camera forward or
back to find the point of focus.
(4) Touch up the focus.
Turn the focusing ring for fine focusing.
• Since macro shots have a very shallow depth of field, focus
carefully to obtain proper sharpness.
• To prevent camera shake, using a Remote Switch and tripod is
recommended (both sold separately).
• To check the depth of field, press the camera’s depth-of-field
preview button.
Nomenclature
●①Magnification scale (normal operation)
●②Distance scale
●③Depth-of-Field scale
●④Magnification scale with Life Size Converter
EF attached (EF50mm f/2.5 only)
●⑤Distance index
●⑥Focusing ring
●⑦Focus mode switch
●⑧Lens mount index
●⑨Contacts
●⑩Focusing distance range selector switch
(EF100mm f/2.8 Macro only)
Macro Lenses
EF50mm f/2.5 Compact macro EF100mm f/2.8 Macro
Instructions

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CT1-8537-002 © CANON INC. 2006
5. Setting the Exposure
When taking photographs using TTL metering, no exposure
compensation is necessary to meter the light coming through the lens.
With TTL metering, AE (autoexposure) is possible at all focusing
distances. Just set the desired picture-taking mode, then check the
shutter speed and aperture before taking the picture.
When you use a handheld exposure meter to set the exposure, you must
take into account the exposure factor shown in the following table.
EF50mm f/2.5 Compact macro lens only
Magnification 1:10 1:8 1:6 1:5 1:4 1:3 1:2.5 1:2
Effective f/No. 1.21 1.27 1.36 1.44 1.56 1.78 1.96 2.25
Exposure Factor
(stops)
in ½ stops 0 +½ +1.0
in ¹ä³stops 0 +²ä³+1.0 +1¹ä³
EF50mm f/2.5 with Life Size Converter EF
Magnification 1:4 1:2 1:1.5 1:1.2 1:1
Effective f/No. 1.64 1.87 2.16 2.49 2.86
Exposure Factor
(stops)
in ½ stops +½ +1.0 +1½
in ¹ä³stops +²ä³+1.0 +1¹ä³+1²ä³
EF100mm f/2.8 Macro
Magnification 1:4 1:3 1:2.5 1:2 1:1.5 1:1
Effective f/No. 1.44 1.61 1.76 1.99 2.41 3.38
Exposure Factor
(stops)
in ½ stops +½ +1.0 +1½ +2.0
in ¹ä³stops +¹ä³+²ä³+1.0 +1¹ä³+1²ä³
• The correct exposure for a close-up shot largely depends on the
subject. Therefore, it is recommended to take several shots of the
same subject at different exposures.
• When taking close-up shots, it is recommended to use aperture-
priority AE (Av) or Manual (M) picture-taking modes, because depth of
field and exposure are easy to adjust in those modes.
6. Depth-of-Field Scale
The depth of field is the distance in front of and behind the plane of focus
on the subject that appears sharp. The depth of field is indicated by the
area between the depth-of-field scale lines below the distance scale.
The numbers on the scale are F values (with the EF50mm f/2.5 Compact
macro ❺).
• The depth-of-field scale is an approximate indicator.
7. Infrared Index (EF50mm f/2.5 Compact macro only)
The infrared index corrects the focus setting when using monochrome
infrared film. Focus on the subject in MF, then adjust the distance setting
by moving the focusing ring to the corresponding infrared index mark ❻
-Ⓐ, Ⓑ.
• Some EOS cameras cannot use infrared film. See the instructions for
your EOS camera.
8. Filters
You can attach filters to the filter mounting thread on the front of the
lens ❼.
• Only one filter may be attached.
• Use a polarizing Canon filter (52 mm).
9. Specifications
EF50mm f/2.5 EF100mm f/2.8
Focal Length/Aperture 50mm, f/2.5 100mm, f/2.8
Lens Construction 8 groups, 9 elements 9 groups, 10 elements
Angle of View Diagonal–46° Vertical–27°
Horizontal–40°
Diagonal–24°
Vertical–14°
Horizontal–20°
Focusing Distance
Ranges 0.23 to ∞m
(0.58 to ∞inch)
0.31 to ∞m full (0.79 to
∞inch)
0.31 to 0.57 m (0.8 to
0.14 inch) with limit
0.57 to ∞m (1.45 to ∞
inch) with limit
Max. Magnification 0.5×/1× (with Life Size
Converter EF attached) 1×
Filter Diameter 52 mm
Max. Diameter and
Length 67.6 × 63 mm (2.7 × 2.5 inch) 75 × 105.3 mm (3 × 4.1 inch)
Weight 280 g (9.8 oz) 650 g (1.42 lb)
QThe lens length is measured from the mount surface to the front end
of the lens. Add 21.5 mm when including the lens cap and dust cap.
QThe size and weight listed are for the lens only, except as indicated.
QAperture settings are specified on the camera.
QAll data listed is measured according to Canon standards.
QProduct specifications and appearance are subject to change without
notice.
QCase and hood not provided with some models.
QFilters sold separately.
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.