Canon EF600mm f/4L IS II USM Manuel d'instructions - Page 27
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18. Extenders (Sold Separately)
Use an extender EF1.4× III or EF2× III to shoot
a larger image of a subject. Lens specifications
when using an extender are as follows.
Focal length (mm)
Aperture
Horizontal
Vertical
Angle of view
Diagonal
Maximum magnification (×)
Attach the extender to the lens, and then attach
O
O
the camera. To detach it, reverse the order.
Errors may occur if you attach the extender to
the camera first.
Extenders cannot be used more than one at a
O
O
time.
If using an extender EF2× III, the maximum
O
O
aperture is then f/8 and cameras that can
shoot using AF are limited. Please refer to the
camera's instructions for details.
When an extender is attached, the AF speed will
O
O
become slower to retain proper control.
EF1.4× III
EF2× III
840
1200
f/5.6 – 45
f/8 – 64
2° 30'
1° 40'
1° 40'
1° 10'
3°
2°
0.21
0.31
19. Extension Tubes (Sold Separately)
Use an extension tube EF12 II or EF25 II to get
closer to a subject and shoot a larger image.
Lens specifications when using an extension
tube are as follows.
EF12 II
Focusing distance range (mm)
Magnification (×)
EF25 II
Focusing distance range (mm)
Magnification (×)
MF mode is recommended for accurate focusing.
O
O
Close distance
Long distance
3757
29435
0.18
0.02
Close distance
Long distance
3382
14187
0.21
0.05
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