Dioptric Compensation; Magnification - VWR VisiScope 260 Serie Manual De Instrucciones

9.4

Dioptric compensation

• This compensation makes possible for peo-
ple wearing glasses to adjust the microscope
to their eyes and use the microscope without
glasses.
1. Put the zoom ② down to the lowest magnification
and focus the specimen with the focusing knobs
③. (Fig. 10)
2. Put the zoom to the maximum magnification and
repeat the focusing.
3. Return to the lowest magnification: the specimen
will be out of focus.
4. Adjust the diopter compensation ring of the right
eyepiece ④ until the image of the right eyepiece
is clear and sharp (Fig. 11). Repeat the procedure
for the left eyepiece.
5. Then, check the focus of the image for the whole
zoom range. It should now be perfectly parfocal
(focus is always maintained during the change of

magnification).

9.5 Magnification
STB260
1. Rotate the magnification changer ⑤ to insert the
desired lens in the optical path. (Fig. 12)
• Rotation in clockwise direction will change from
2X to 4X lens.
• Counterclockwise rotation will change from 4X to
2X lens.
SZB260/SZT260
1. Select the desired magnification by adjusting the
zoom knobs ⑥.
• Change the eyepieces and/or add an appropriate
additional lens if necessary.
• The microscope body is equipped with a "ma-
gnification lock" function that allows to obtain a
precise setting of the desired magnification. Ma-
gnification lock can be activated or deactivated
by operating with the provided allen wrench in the
hole ⑦ placed in front of the microscope body.
(Fig. 13)
②
⑥
9
③
Fig. 10
④
Fig. 11
⑤
Fig. 12
⑥
⑦
Fig. 13