Leica M420 Instruction Manual page 12

6V/20W incident lamp on adapter
for side-faced columns
6V/20W incident lamp on cast foot
6V/10W incident lamp on adapter
for side-faced columns
12
6V/10W incident illuminator
• Competitively-priced incident lamp
for observation
• 6V/10W halogen bulb
• Focusable light spot
• Colour temperature 2800K
• Built-in diffuser
• Built-in filterholders
• Various lampholders and fitting possibilities
• Adjustment of the light intensity
with a regulating- or step transformer
The 6V/10W incident lamp is suitable for obser-
ving spatial objects. The size of the bright and
uniform spot can be matched to the diameter of
the field of view.
The 6V/10W incident lamp is supplied with a
swing-in filterholder with KG1 heat-absorbing
filter. If required, three additional 50mm-
diameter filterholders, accepting a range of
filters, can be attached.
The lampholder can be secured in any position
with the freeze lock. Various adapters enable it
to be connected to the column, to the objective
mount, or to the cast foot.
6V/20W incident illuminator
• High-quality incident lamp for observation
and photography
• Centrable 6V/20W halogen bulb
• Variable diameter for light spot
• Colour temperature 3200K
• Built-in, heat-absorbing filter
• Swing-in frosted filter
• Swing-in filterholder
• Freely-positionable lampholder
• Various lampholders and possibilities
for fitting
• Light intensity adjustable using variable-
or step transformer.
The 6V/20W incident lamp is the preferred
choice for ideal light quality, high light output,
completely-uniform illumination, and a colour
temperature of 3200K.
The brightness is continuously adjustable with
the regulating transformer. The size of the light
spot can be continuously matched to that of the
field of view.
In addition to the diffusing filter supplied,
three swing-in filterholders, accepting 32mm-
diameter filters, can be attached to the lamp
housing. The large lampholder is very flexible
and has a central freeze lock. The thread
permits fitting to the column (using adapter), to
the cast base, and to the drive housing of the
universal stand.
Coaxial incident light
• Flare-free illumination of flat shiny surfaces
• For Macrozoom and Apozoom objectives
• Quarter-wave plate, rotatable to increase
contrasts
• 6V/20W halogen bulb
• 0–7V regulating transformer
Flat, highly-reflecting surfaces appear dark in
inclined incident light, but can be seen if
they are illuminated vertically from above. The
coaxial incident light housing, usable with the
Macrozoom objective, meets this requirement.
It includes a centrable 6V/20W halogen bulb; a
concave mirror, collector lens and condenser
lens to maximize the illumination; and polarizing
filters that quench stray light. The degree of light
extinction is determined by the position of a
rotatable quarter-wave plate; rotation can
improve the contrast.
The coaxial illuminator also includes a filter-
holder with diffuser. If required, additional filter-
holders for 32mm-diameter filters can be added.
Leica M420 with cold-light source
Leica CLS150 and ring lamp