Olympus E-PL1 - Manual (Page 97)

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Information
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Interchangeable lenses
Select the lens that you want to shoot with.
Use a specifi ed 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 specifi cally for use with the “Micro Four Thirds
system” which is a smaller, thinner version of the “Four Thirds system”.
Focal length and depth of fi eld 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 fi eld equivalent to two
times deeper than that of a 35-mm camera. A Micro Four Thirds system lens with
f/2.8 brightness, for example, is equivalent to f/5.6 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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# Caution
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. •
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