Olympus BX60 Manual de instrucciones - Página 32

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Olympus BX60 Manual de instrucciones
BX60
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Aperture Iris Diaphragm
53> I
illumination system. Matching tho numerical aperture ol the illumination
system with that of the objective provides better image resolution
and contrast, and also increases the depth of focus.
• Since the contrast of microscope specimens is ordinarily low. setting
the condenser aperture iris diaphragm to 70*0% o! the NA of the
objective in use is usually recommended. When necessary, adjust the
ratio by removing the eyepiece and looking into the eyepiece sleeve
while adjusting the aperture iris diaphragm ring (J) until the image
shown in Fig. S3 is seen.
O Using the Numerical Aperture Seals
. (fig. 54)
Example:
With the Plan 40X (NA 0.651. set the scale to 0.65 X 0.8 - 0.5.
the
Compatibility of Objectives and Condernari
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•I W'w usir* ir» U-SC siwnfrou a(±>omat condenw toc^^
and um Ota field ins itsphngm m tha bssa n aperture diashrscm.
•2 AllhoushslishttyinadoQuataNA rosults in a wnwrvtat daitcr feld of vi«w vwth a I00X objacUw. tlw o(OT*™
O To otaoi banar JBumrowm. usa of tha UHJLC a (ocemmendad m pnmomoography whan using tha 2X or 4X cbfiar*.
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