Leica M205 FA Manuel D’Utilisation
Leica M-series
User Manual
73
The iris diaphragm in the optics carrier of your
M series microscope fulfills the same purpose
as the iris diaphragm in a camera: it regulates
the available light, which changes the depth
of field. The "depth of field" (or "focus depth")
is the area of a specimen that is brought into
sharp focus.
M series microscope fulfills the same purpose
as the iris diaphragm in a camera: it regulates
the available light, which changes the depth
of field. The "depth of field" (or "focus depth")
is the area of a specimen that is brought into
sharp focus.
Closing the iris diaphragm
Close the iris diaphragm by turning the
ρ
knob to the left. The subject appears darker
and the depth of field increases.
and the depth of field increases.
Opening the Iris Diaphragm
Open the iris diaphragm by turning the
ρ
knob to the right. The subject now appears
brighter, but the depth of field decreases.
brighter, but the depth of field decreases.
Iris Diaphragm