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11
5. Setting up and using the All Pupil II
Interpupillary Distance Setting Control (J)
Because the eyes are dissociated, particular care must be taken
to ensure the optics (eyepieces) are set properly in front of each
eye.
Always set the Aperture Control Lever (D) to the large light
patch for this exercise.
Place an object, perhaps the thumb, approximately 40cm from
the face and centre it horizontally in the light patch. Then, close
one eye. Using the thumb and forefinger of the opposite hand,
slide the Interpupillary Distance Setting Control (J) of the open
eye (located directly under each eyepiece) so that your object
moves into the centre of the field, keeping the object in the
centre of the light patch. Repeat for the other eye.
Obtaining a Fused Image
Ensure that a singular, fused image is obtained as follows:
Mirror Angle Control (K)
The light is positioned vertically into the upper two thirds of the
field of view by rotating the spindle (K) located on either side of
the binocular block.
Head Dimmer Switch (E)
Turn the illumination on by rotating the headband dimmer
switch (E) in an anti clockwise direction.
Separate images Fused image Overlapping images
