Canon EF 600mm f4L IS II USM - Manual (Page 20)

ENG-19
16. Extenders (Sold Separately)
Lens specifications when using extender EF1.4× II/III or EF2× II/III are as follows.
EF500mm f/4L IS II USM EF600mm f/4L IS II USM
EF1.4× II/III EF2× II/III EF1.4× II/III EF2× II/III
Focal length (mm) 700 1000 840 1200
Aperture f/5.6 – 45 f/8 – 64 f/5.6 – 45 f/8 – 64
Angle of view
Diagonal 3° 30’ 2° 30’ 3° 2°
Vertical 2° 1° 20’ 1° 40’ 1° 10’
Horizontal 3° 2° 2° 30’ 1° 40’
Maximum magnification (×) 0.21 0.31 0.21 0.30
Attach the extender to the lens, and then attach the lens to the camera. To remove it, reverse the order. O O
Errors may occur if you attach the extender to the camera first.
With Extender EF2× II/III attached to the lens, only manual focus is possible. However, with the EOS-1Ds
O O
Mark III, EOS-1Ds Mark II, EOS-1Ds, EOS-1D Mark IV, EOS-1D Mark III, EOS-1D Mark II N, EOS-1D Mark
II, EOS-1D, EOS-1V/HS camera, autofocusing with the center focusing point is possible.
When shooting with EOS A2/A2E/5 fitted with either the EF500mm f/4L IS II USM or EF600mm f/4L IS II
O O
USM, use –0.5 step exposure compensation when using extender EF1.4× II, and use –1 step exposure
when using extender EF2× II.
Extenders cannot be used more than one at a time.
O O
Autofocusing is still enabled with extender EF1.4× II/III attached. O O
When an extender is attached, the AF speed will become slower to retain proper control. O O
COP
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