Canon EF 100-400mm f/4.5-5.6L IS USM, Инструкция по эксплуатации

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ENG-8
3. Zooming
To zoom, turn the zoom ring.
Minimum focusing distance:
changes
according to the focal length.
Focal length
Minimum
focusing distance Magnification
100 mm 1.2 m / 3.94 ft. 0.09x
200 mm 0.88 m / 2.89 ft. 0.24x
300 mm 0.95 m / 3.12 ft. 0.34x
400 mm 1.05 m / 3.44 ft. 0.41x
z
Be sure to finish zooming before focusing.
Zooming after focusing can affect the focus.
z
Once a close-up subject is in focus, zooming
may cause the subject to come out of focus.
In this instance, move back from the subject and
refocus.
z
Blurring may temporarily occur if the zoom ring
is quickly turned.
z
Please be careful not to let your fingers get
caught in between the lens portion that extends
and the lens body when zooming.