Canon CF-1 - Manual (Page 39)

6. Photography auxiliary functions
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6.3 Small pupil photography function
The small pupil photography function can be used in the
color, red free or OPTION photography mode.
To activate this function, press the small pupil photography
switch on the operation panel.
The small pupil photography lamp will light brightly.
During normal photography, the pupil diameter must be ø5.2
mm or more. When the small pupil photography function is
operational, however, images of pupils can be taken if their
diameter is ø4.3 mm or more.
In this case, however, flare may be visible around the edges
of the images.
6.4 Diopter compensation function
If the target cannot be brought into focus by turning the focus
knob, use the diopter compensation lever to insert the diopter
compensation lens, and take the photographs. Given below is
the diopter range in which images can be photographed.
0 position: –10 to +15 D
– position: –7 to –31 (D)
+ position: +11 to +33 (D)
However, since the focus indicator (see page 38) cannot be
used when the diopter compensation lever is set to the – or +
position, turn the focus knob to adjust to the position where
the cross-hair lines and fundus image are clearly visible at the
same time inside the viewfinder.
Note: When operating the diopter compensation lever, set it precisely to the 0, – or + position.
If the lever is set to a position midway between two settings, fundus images will not be
taken properly.
Small pupil photography lamp
Small pupil photography switch
000_L-IE-5152E_CF-1.book Page 39 Monday, July 29, 2013 10:30 AM