Rollei flex Mode D'emploi page 18

Inserting an instant film magazine
18
Aperture
When you are indoors, you should choose a larger aperture. The
electronic eye automatically adjusts the shutter speed according to
the lighting conditions.
To adjust the aperture dial the aperture wheel and select the desired
value.
ENGLISH
Film size: 54 x 86 mm (WxH)
Image size: 46 x 62 mm (WxH)
Note: After inserting a fresh pack
of film, press the eject button once
to eject the dark slide.
The aperture determines the
amount of light entering the
camera. A larger aperture (f/5.6)
allows more light to enter, and a
smaller aperture (f/22) allows less
light to enter.
The ambient light meter inside the
viewfinder will tell if you have
selected a suitable aperture given
the particular lighting conditions.
When you are outdoors, you should
choose a smaller aperture.