User manual

20
MORE ABOUT THE EXPOSURE CONTROL
With the selector ring at DA YLIGHT ,' the photoelectric meter of the exposure control
measures the
over-all brightness of the light reflected by the subject.
Scenes l acking grea t subject contrast: That is , when the differences in brightness be-
tween the d
ar k and the bright areas are moderate, or when very bright and dark areas
are
of about the same size, but of equal picture interest, use the automatic exposure con-
trol without modific at ion -as described previously. Most pictures fa ll into this grouping.
Scen es with considerable subject contra st: For example, a person with light-colored
clothing against a dark background. A better exposed picture
of the person may be ob-
tained
by making a "close-up" reading. Mo ve close to the subject so that the person fills
the finder. Press down the shutter release until a slight resistance
is felt- about % of the
way (not far enough to release shutter); continue to hold the release
in this position to
maintain the exposure setting, then step back
and pre ss the release down fully to take
the picture.
Modifying the ASA seHing: This may achieve a result which is more suitable for you.
Using a higher speed results in denser tr ansparencies for high-wattage projectors and
a small screen. A lower film speed gives lighter transparencies for a low-wattage pro-
jector
and large screen.
To modify the film speed setting when using filters with black-and-white films, divide
the film speed
by the filter factor; use neare st film speed number.
· With selector ring set for Flash, fl ash pictures in a sma ll room with very light wa ll s are improved by us-
ing
th e next higher guide number than recomme nd ed. In large r oo ms or outdoors, use next lower guide
number.