Leica DMIL Mode D'emploi page 69

Colour codes of objectives
In compliance with DIN/ISO standards, the
magnification of each objective is indicated by a
colour ring:
100x 63x
125x
150x
160x
white dark
blue
Immersion objectives are also marked with a se-
cond, lower colour ring:
black Oil or Imm (= Universal objective
for oil, water, glyzerine)
white Water
orange Glyzerine
BD
P, POL
U-V-I
40x 25x 16x
50x 32x 20x
light dark light
blue green green
BD = Brightfield/Darkfield; objectives for inci-
dent light microscopy with M 32 objective
thread.
Strain-free objective for quantitative polarised
light microscopy.
Special apochromatic correction, i.e. parfocal
from Ultraviolet through Visual to near Infrared
(from about 340 nm to 1000 nm).
10x 6.3x
yellow orange
4x 2.5x 1.6x
5x
red brown grey
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