Leica M205 C Manuel D’Utilisation
Leica M series
Manual
56
The iris diaphragm in the optics carrier of your
M series microscope has the same purpose as
those in a camera shutter: it regulates the avail-
able light, which changes the depth of field. The
"depth of field" is the area of a specimen that is
brought into sharp focus.
M series microscope has the same purpose as
those in a camera shutter: it regulates the avail-
able light, which changes the depth of field. The
"depth of field" is the area of a specimen that is
brought into sharp focus.
Closing the iris diaphragm
Close the iris diaphragm by turning the
★
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
★
knob to the right. The subject now appears
brighter, but the depth of field decreases.
brighter, but the depth of field decreases.
Iris Diaphragm