Specifications

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HOW
TO
GET TIfi
MOST
OUT O}
YOUR
BOIXX S-22L
-
Arransement
of
Projector
and Screen
The distance
from the screen
depends
on
the
size
of the screen
and
on
the
focal
length
of the lens
used.
The
diagram
opposite shows
the
size
of the
picture
produced
on
the
screen
when
using
projection
lenses
of
focal
length
35,
50
and
70
mm
at various projection
dlstances.
5678
lldtb
of acreeh
For
example
: For
a
50
nn lens and
a 6
ft
scy.etrn the annrnnriqte
nroiention rlistance
rvill1 tre
30
ft.
Set
the
beam i-s
nrn io oJ- nr nn
q
nrn'i onl-ad nrrar
yr
vJvv
stand. or
table faclng the screen,
the heads of
the audience.
high
enoush so
that the
Try
to
ensllre
that the screen i-s
al-
ways
set
squarely in line
with the
projector,
but if this
j-s
not
possible
the
screen
should be inclined sli-ghtly
i-n
the
appropriate d.irectj-on
so that
the
beam
strikes it
perpendicularly.
By
doing
this,
picture
distortion
is
avoided.
2