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The EF-S18-135mm f/3.5-5.6 IS STM kit lens uses a stepping motor
that drives the focus lens (for achieving focus). The motor controls the
focus lens even during zooming.
1. When the camera is OFF
The motor does not operate while the camera is OFF or when the
camera is OFF due to the auto power off function. Therefore, users
must be aware of the following points.
Manual focusing is not possible.
During zooming, inaccurate focusing may occur.
2. When the lens is in sleep mode
If not operated for a certain period of time, this lens will enter sleep
mode in order to save power, apart from the camera’s auto power
off. To exit sleep mode, press the shutter button halfway.
In sleep mode, the motor will not operate even if the camera is ON.
Therefore, users must be aware of the following points.
Manual focusing is not possible.
During zooming, inaccurate focusing may occur.
3. During initial reset
When the camera is turned ON or when the camera is turned ON by
pressing the shutter button halfway when the camera is OFF due to
the auto power off function*
1
, the lens performs an initial reset of the
focus lens.
Although the image in the viewfinder will appear out of focus
during the initial reset, this is not a malfunction.
Wait approx. 1 second*
2
until the initial reset has completed
before shooting.
*1: Applicable to the following EF-S lens compatible digital SLR cameras:
EOS 7D Mark II, EOS 7D, EOS 70D, EOS 60D, EOS 60Da, EOS 50D,
EOS 40D, EOS 30D, EOS 20D, EOS 20Da, EOS 600D, EOS 550D, EOS
500D, EOS 450D, EOS 1100D, EOS 1000D, EOS 400D DIGITAL, EOS
350D DIGITAL, EOS 300D DIGITAL
*2: The initial reset time varies depending on the camera used.
Handling Precautions:
EF-S18-135mm f/3.5-5.6 IS STM