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Focal length
At the same focal length of a 35-mm camera, a Four Thirds system camera can achieve a
focal length equivalent to twice that of a 35-mm camera. This enables the design of compact
telephoto lenses. A 14-50 mm Four Thirds system lens, for example, is equivalent to a 28-
100 mm lens for a 35-mm camera.
• When the image angle of Four Thirds system lens is converted to that of a 35-mm camera,
the perspective is the same as that of a 35-mm camera.
Depth of Field
A Four Thirds system camera can achieve a depth of field equivalent to two times deeper
than that of a 35-mm camera. This enables more light to enter through the aperture. A Four
Thirds system lens with f2.0 brightness, for example, is equivalent to f4.0 when converted to
the aperture of a 35-mm camera.
• You can achieve the same amount of background blur as if you were using a 35-mm
camera.
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Notes
• When you attach or remove the body cap and lens from the camera, keep the lens mount on
the camera pointed downward. This helps prevent dust and other foreign matter from getting
inside the camera.
• Do not remove the body cap or attach the lens in dusty places.
• Do not point the lens attached to the camera toward the sun. This may cause the camera to
malfunction or even ignite due to the magnifying effect of sunlight focusing through the lens.
• Be careful not to lose the body cap and rear cap.
• Attach the body cap to the camera to prevent dust from getting inside when no lens is
attached.
ZUIKO DIGITAL lens specifications
Names of parts
1
Hood mount section
2
Filter mount thread
3
Zoom ring
4
Focus ring
5
Mount index
6
Electrical contacts
7
Front cap
8
Rear cap
9
Lens hood
• Use the hood when shooting a backlit subject.
• The lens hood cannot be attached to the 17.5 - 45 mm lens.
Attaching the hood
Storing the hood
s0018_e_00_0_unified.book Page 123 Tuesday, March 18, 2008 4:08 PM
