Pentax SMC -FA Camera Lens User Manual


 
9
A zoom lens has two rings: The
focusing ring at the front of the lens
and the zoom ring behind it. Turn the
zoom ring to obtain the desired angle
of view (focal distance).
* Whenever you turn the zoom ring
to change the angle of view (focal
distance), the focus may also
change slightly. First turn the zoom
ring, then focus.
About the zoom ring
Turning the zoom ring to the right
gets a [Telephoto] effect, making the
subject look larger. Turning it to the
left gets a [Wide angle] effect, cover-
ing a wider area.