Konica Minolta Z10 Manual De Instruções

Página de 120
66
SHORT GUIDE TO PHOTOGRAPHY
A SHORT GUIDE TO PHOTOGRAPHY
Photography can be a rewarding pursuit. It is a broad and disciplined field that can take
years  to  master.  But  the  pleasure  in  making  photographs  and  the  joy  of  capturing  a
magical  moment  cannot  be  compared.  The  guide  is  an  introduction  to  some  basic
photographic principles.
The  lens  aperture  controls  not  only
exposure, but also depth of field; the
area  between  the  closest  object  in
focus and the furthest object in focus.
The  larger  the  aperture  value,  the
greater the depth of field. The smaller
the  aperture  value,  the  shallower  the
depth  of  field.  The  required  shutter
speed for the exposure increases with
the aperture value. Usually landscape
photographs use a large depth of field
(large  aperture  value)  to  keep  the
foreground  and  background  in  focus,
and  portraits  use  a  shallow  depth  of
field (small aperture value) to separate
the subject from the background.
Depth of field also changes with focal
length.  The  smaller  the  focal  length,
the  greater  the  depth  of  field;  the
longer  the  focal  length,  the  shallower
the depth of field.