Canon EF70-200MM F/4L IS USM 用户手册

ENG-13

• Autofocusing is still enabled with Extender EF1.4X II attached.
• When an Extender is attached, the AF speed will become slower by design to retain proper

AF control.

• First attach the Extender to the lens, then attach the lens to the camera. Detach it from the

camera in the reverse order. If you attach the lens to the camera first, misoperation may
occur.

• With Extender EF2X II attached to the lens, only manual focus is possible. However, with the

EOS-1Ds Mark III, EOS-1Ds Mark ll, EOS-1Ds, EOS-1D Mark lll, EOS-1D Mark ll N, EOS-1D
Mark ll, EOS-1D, EOS-1V/HS, EOS-3 camera, autofocusing with the center focusing point is
possible.

• Only one Extender can be attached to the lens and camera.
• If you use an Extender on the lens mounted on a EOS A2/A2E/5, set the exposure

compensation to -1/2 stop for the EF1.4X II or -1 stop for the EF2X II.

With Extender EF1.4X ll or EF2X ll attached, the lens specifications will change as follows:

With EF1.4X ll Extender

With EF2X ll Extender

98 – 280

140 – 400

f/5.6 – 45

f/8 – 64

25°20’ – 8°50’

16°20’ – 6°10’

13°50’ – 4°55’

9°10’ – 3°30’

20°50’ – 7°20’

13°40’ – 5°10’

×)

0.31

0.45

COP

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