FOCUSING (Manual Focus) (Fig. 1, 2 & 6)
Switch the focusing mode switch of the camera to manual focusing mode (MF) in case
of Nikon, Sony or Pentax. In case of Canon camera, switch the AF/MF switch (14) on
the lens to MF. *(Fig. 6). Focus by manually rotating the focusing ring while viewing
through the camera's viewfinder. The main subject image in the viewfinder will be
critically sharp on the viewfinder screen when the lens is focused correctly.
*Even in the MF mode, turning the focusing ring (8) while pressing the shutter
half way the focus aid function lamp lights up when the picture is in focus.
*At infinity, make sure the image in the viewfinder appears sharp. The infinity
position is made with certain allowances to insure proper focus under a variety
of conditions.
**For further details, please read the instruction manual that came with your camera.
ZOOMING (Fig. 1 & 2)
Rotate the zoom ring (9) while viewing through the camera's viewfinder and compose
your image at the chosen focal length.
ZOOM LOCK SWITCH (Fig. 3 & 4)
This lens is equipped with a newly developed zoom lock switch mechanism, which
prevents the lens barrel from extending toward long focal lengths by their own weight,
while hanging off the shoulder, or a chair for example. Activate the switch at 28mm
setting to stop the lens barrel from rotating and extending.
How to activate the zoom lock switch mechanism:
1. Locking: Set the lens to the 28-mm position. Move the switch (12) toward the camera,
until the index lines align with each other. The lens barrel is now locked in position and
does not rotate or extend by its own weight.
2. Releasing: Push the switch away from the camera. The lens barrel is now free to
rotate and extend for zooming.
*The zoom lock switch (12) cannot be activated unless the lens is set to the 28mm position. Do not force the lock switch or do not try to rotate the lens barrel
while locked.
*The lens can be used at 28-mm setting for picture taking even when locked by
the switch.
*The zoom lock mechanism is made to prevent the lens barrel from extending
while carried around. When not locked, the zoom lens may change its focal
length during a long exposure if used while in a low or high angle position.
LENS APERTURE AND AE MODE (Fig. 1, 7 & 8)
Setting lens f-numbers with Canon & Sony cameras
Set the f-number with aperture setting device of the camera body in accordance with the
selected photographing mode.
**For further details, please read the instruction manual that came with your camera.