Nikon OPTIPHOT-POL Gebruiksaanwijzing - Pagina 17

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•

Using 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. 29)

. _

= ....•• -

Dou ble cross line

;;.::";""

l2lll2....,.. __

of the mask eyepiece

/il111

The focusing

magnifier

is to be adjusted

beforehand

for

viewing

infinit

distance

(magnifier is set at the red line).

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.

Fig. 28

Double

cross Ii.ne

«>

4)7

-+ ~

of the ocular finder

q)P ~

'l~

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. 31)

Fig. 29

Outer frame

Inner frame

Intermediate

frame

For 35mm

film

For 4"x5"

Polaroid

film

For

3~"

X 4X;"

Polaroid

film

For 6X9

roll film

Double cross line

Finder

mask

When the mask eyepiece is used, select one

out of masks in the view field suitable to

the film size relative to CF PL Projection

lens in use, in reference with

Fig. 32 and

Table 4.

Fig. 31

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

rotating

the

microscope fine focus knob and make sure

that both of the double cross line and the

speci men image are seen crisp Iy 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

the double cross line so as their relative

position

is fixed

and unchanged

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. 30)

Mask of the mask eyepiece

Fig. 32

Fig. 30