Table of Contents
Advertisement
Leica TL RC™ / TL RCI™: Operation
Setting the relief contrast
The two switches on the left side of the trans-
mitted-light base TL RC™/TL RCI™ activate two
built-in flaps. The outer switch (1) controls the
inverted relief contrast, and the inner switch (2)
adjusts the positive relief contrast.
1 2
3
1
Switch for adjusting the inverted relief cont-
rast
2
Switch for adjusting the positive relief cont-
rast
3
Deflection mirror
Leica Z6 APO A / Z16 APO A
Depending on the flap position, a part of
the opening of the built-in Fresnel lenses are
covered, which results in the different contrast
effects. Phase structures typically act as spatial,
relief-type images—in the positive relief cont-
rast like hills, in the inverted relief contrast like
valleys.
User Manual
Increased contrast without relief is attained if
both diaphragms are set to 45°. A gap-like illu-
minated area is created. By tilting the deflection
mirror slightly, you can move the gap over the
entire field of view and quickly toggle between
positive and negative relief images. The dyna-
mic effect makes it easy to distinguish phase
structures from amplitude structures.
72
Advertisement
Table of Contents
