Canon DIGISUPER 27 Manuel

E12

2  PREPARATION

The optional incorporable focus servo demands are offered 
for some types of camera.

  Remove the lens shroud from the lens.

  Set the focus demand selection switch to the “CAM” 

position.

This switch is usually set to the “LENS” position by default.

Focus Damand Characteristics Curve

Selection Switch

(Only models without information display)

Information display

Focus Demand Selection Switch

  Set the focus demand characteristics curve mode on 

the informaiton display. One mode can be selected 
among the following three curves. For the detailed 
setting method, refer to the “

Manual” at the end of this Operation Manual. Users of 

models without the information display can select the 
mode with the focus demand characteristics selection 
switch.

 

STD (Standard mode):

The Standard mode has the characteristics 

where the relationship between the rotation 

amount of the control knob and the moving 

amount of the focus lens group is almost 

in linear.

FAR (Far mode):

The Far mode facilitates focusing on an 

object in the far end, by making the far end 

curve characteristics gentle to increase the 

far end resolution.

This mode is useful when shooting an 

object in comparatively far distance in 

sports events, for example.

NEAR (Near mode):

Contrary to the Far mode, the Near mode 

facilitates focusing on an object in the 

near end, by making the near end curve 

characteristics gentle to increase the near 

end resolution.

This mode is useful when shooting an 

object in a limited space such as a studio.

Infinity

Close 

range

Focus position

Knob position

Far mode

Standard mode

Near mode