Binocular Of Eyepiece Tube; Ocular Finder; Picture Composing - Nikon Labophot Instruction Manual

Viewing through the attached focusing
magnifier, move it back and forth until the
double cross line is seen clear. Then, focus
the double cross line and the specimen
image by rotating the fine focus knob as
sharp as possible.
the double cross line so as their relative
position is fixed and unchaned under
observation by swinging your eye laterally.
(Focusing by parallax method.)
• Using 4X or lower objective:
Attach the focusing magnifier to the
ocular finder. (Fig. 18)
CD
Adjust diopter.
• Binocular of eyepiece tube:
Use 4X or lOx objective.
Insert the mask eyepiece into either of
right or left eyepiece
sleeve
that is ac-
customed to usual use. Adjust the dioPter
ring to bring the double cross line in the
view
field center into focus. (Fig. 16)
Then focus the specimen image also on the
central area of the mask by means of the
focus knoq of the microscope.
The diopter of another eyepiece is to be
adjusted by focusing specimen rotating the
diopter ring without using the microscope
focus knob.
Rotate the mask eyepiece so as the mask
positions as shown in Fig. 19 .
• Ocular finder:
Adjust the diopter ring so as the double
cross line in the
view
field center can be
seen clear and each line separated. (Fig. 17)
111 __ II
Double cross line
::::::mE''':;''' __
of the mask eyepiece
II II
Focusing magnifier
Ocular finder
\lilill
o
Fig. 18
Fig. 16
Double cross line
«;
<» ••• ~ ~
of the ocu lar finder Af;7 ~ ~ ~
Fig. 17
(2)
Make focusing according to the magnifica-
tion of
objective
to be used.
• Using 40X or higher objective:
With diopter adjusted eyepiece make the
specimen image sharp by rotating the
microscope fine focus knob and make sure
that both of the double cross line and the
specimen image are seen crisply at the same
time.
• Using medium magnification objective
10X, 20X, etc.:
After focusing the same way as
above,
bring the specimen image to coincide with
17
8. Picture composing
Compose the picture within the mask in
the ocular finder corresponding to the film
size in use by driving the microscope stage
by lateral and longitudinal
movement
and
rotation. (Fig. 19)
For 3Smm film
For 4"XS"
Polaroid film
ForJ~'X4~'
Polaroid film
For6X9
roll film
Double crossline
Finder mask
Fig.19
Masks of the mask eyepiece are appli-
cable to 35mm film picturE! composing .
Select one out of masks suitable to the
CF PL Projection lens in use.
Note that, however, framing for picture
composing will be more accurate by the
ocular finder than the mask eyepiece.