29. Other Accessories
Lens Hood
We strongly recommend the use
of
a lens hood
to keep
out
side light
which
may cause flare and
ghost images
to
form
on the image. Rigid Canon
hoods also help
to
protect the lens
from
shock.
Use only a hood
whi
ch
is
specified
for
your par-
ticular lens.
Most
Canon hoods
fit
into the
bayonet
mount
and are fix
ed
by turning. For more
details, please see the lens' instructions.
77
Dioptric Adjustment Lenses S
Ten eyesight correction lenses are available in
the powers
of
+3, +2, + 1.5 + 1,
+0.5
, 0,
-0.5
,
-2,
-3
and
-4
diopters. They may make view-
ing and focusing easier
if
you are near- or
far-
sighted. Choose the one
which
is
closest
to
your eyeglass prescription, and make a practic
al
test
if possible.
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