IV. MANIPULATION OF EACH ELEI\IENT
8) Use of Filters
(1)
ND filter cassette
(Optional)
Accessoryf ters
aitached to lhe opt onalND
flter
cassette
are ND2,
ND4, and ND16. These afe used for
genera
microscopy and
br
ghtness
contro n
photorn
crography.
.
Light s reduced to 118 when the ND2
and
ND4 fiters are
put
nto
the optical
path
and is reduced to 1,/64 when N D4 and N
D
1 6
f ters
are
pul
inio
the optical
path.
Light can be reduced
from 1/2 to 1/
128 dep€nd ng
on
the
comb
nation
of
the flhers.
.
Secure
y
change the f ter nsertion
/remova
knob.
Removing and mounting the ND filters
use
qloves
or
qauze
so as not to touch
the filters with
your
bare
nanos.
o
oro.o
oND
rt.r.
o. oi.lor,u
r"
9".-o
adpt
Place the ND tiller cassette
on
it and spread the ever
{Fig.
12).
To mount the f ller, ifseri the f ter oblique
y
n the opposite s de of
the ever and spread lhe lever from the lower s de
Any
fiters with
an ouler diameter of 45mm and
th
ckness
less than
3rnm
can
be mounted in the ND fiter
cassette.
The indication on
thefter nsertion
//
removal knob, however, caf'tbechanged
Fig. 12
ND2
ND4
ND]6 fransm ssio. r.te=abolt ti"/.
21
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