Olympus E-P2 - Manual (Page 129)

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Select the lens that you want to shoot with.
Use a specified lens (Micro Four Thirds mount). To use the “Four Thirds System Lens”, an
adapter (sold separately) is required. An adapter to allow use of an OM system lens is also
available (sold separately).
M.ZUIKO DIGITAL interchangeable lenses
This is an interchangeable lens specifically for use with the “Micro Four Thirds system” which
is a smaller, thinner version of the “Four Thirds system”.
Micro Four Thirds system lenses and Micro Four Thirds system cameras have
the mark shown to the right .
Focal length and depth of field of Micro Four Thirds system lenses
When compared to 35-mm cameras, Micro Four Thirds system cameras achieve different
effects at the same focal length and aperture.
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. For instance, a Micro Four Thirds system lens 14-42 mm is equivalent to a
28-84 mm lens for a 35-mm camera.
• When the image angle of a Micro 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 Micro Four Thirds system camera can achieve a depth of field equivalent to two times
deeper than that of a 35-mm camera. A Micro Four Thirds system lens with f2.8 brightness,
for example, is equivalent to f5.6 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.
Interchangeable lenses