No aperture settings
The aperture of the 15 mm Minox
tl3.5
lens
is
fixed
at its
full opening. So the camera has no aperture
scale.
The exposure
is
controlled only by the shutter speed.
In
view of the full aperture this
is
always comparatively
fast.
Yet you have plenty of depth of field - for instance
from about 6 feet or 2 metres to infinity at the snapshot
·setting.
The ultraviolet filter
The
glass window
in
front of the lens
is
an
ultraviolet ab-
sorbing
filter to prevent loss of definition
in
colour and
black-and-white shots -
also colour casts in colour
transparencies - when the prevailing daylight contains
a
lot of UV radiation.
The
UV
filter does not increase the exposure time.
16
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