Canon EF100-400mm F4.5-5.6L IS USM Instructions Manual page 15

13. Extenders
This lens can use the EF1.4× II or EF2× II extender with manual focusing. Using an extender
changes the lens specifications as follows.
Item
Focal length (mm)
Aperture 1/2 steps Wide-angle (100mm)
1/3 steps Wide-angle (100mm)
Angle of view Diagonal
Vertical
Horizontal
Maximum magnification (×)
●
When using this lens with an extender, the focusing mode is automatically set to manual mode, even if
the switch is set to AF mode.
●
Extenders cannot be used more than one at a time.
●
Use the following exposure compensations when shooting with this lens fitted to EOS-1N RS or EOS
A2/A2E/5 and used in conjunction with extender EF1.4× II or EF2× II.
Extender EF1.4× II
Extender EF2× II
(Sold Separately)
Telephoto (400mm)
Telephoto (400mm)
EOS-1N RS
–1/3 step (–1/2 step for CF-6-2)
With EF1.4× II Extender With EF2× II Extender
140 – 560
f/6.7 – 45
f/8 – 54
f/6.3 – 45
f/8 – 57
17° 34' – 6° 10'
9° 48' – 3° 22'
14° 39' – 5° 05'
0.28
EOS A2/A2E/5
–1/2 step
–1 step
200 – 800
f/9.5 – 64
f/11 – 76
f/9 – 64
f/11 – 81
12° – 3° 06'
7° – 1° 40'
10° – 2° 35'
0.41
ENG-13