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Significance of Objective Name
(Examples) M PL FL N 100 BD
(Plan)
None : Brightfield
BD :
Brightfield/darkfield
BDP :
Brightfield/darkfield
or polarized
IR : IR light
Figure : Magnification
None : UIS
N : UIS 2
None : Achromat, or aberration correction with 2 wavelengths (red and bleu).
FL : Semi-Apochromat, or color aberration correction with visual wave-
lengths (bluish purple to red).
APO : Apochromat, or color aberration correction with all visual-domain
wavelength (purple to red).
PL : Plan, or correction of image curving on peripheral area.
M : Metal observation (no cover)
LM : Long-WD metal observation
SLM : Superlong-WD metal observation
LC : Observation over glass plate
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