Canon EOS-1DS Mark III Instruction Manual page 39

Basic Operation
Vertical Shooting
The bottom of the camera provides a shutter button, <_:_> Main Dial,
<r:_q> AF point selection button, <_> AE Lock button, <AF-ON> AF
Start button, and
<FEL
> FE lock/Multi-spot metedng button all for
vertical shooting.
_ Before using the vertical shooting
controls, set the vertical operation on/
off switch to <ON>.
® When not using the vertical shooting
controls, set the switch to <OF}:> to
prevent accidental operation.
Adjusting the Viewfinder Clarity
Remove the eyecup.
® While grasping both sides of the
eyecup, sfide it upwardto remove.
2
Turn the dioptric adjustment
knob.
® Turn the knob to the dght or left until
the AF points or the center spot
metedng circle looks sharp in the
viewfinder.
® Attach the eyecup.
!f the camerals dioptrjc adjustment sti!l Cann0t Pr0vide a Sharp viewflnder
image, using Dioptr!c Adjustment Lens Eg (S0!d separately)is
recommended.
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