Nikon SMZ18, Instruction Manual

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Chapter 4
Functions and Operations of the Devices
38
1
Zooming Body
Two types of zooming bodies are available: SMZ18 Zooming Body for manual zoom operations and SMZ25 Zooming Body
for motorized zoom drive.
1.1
SMZ18 Zooming Body
This model, which offers high NA, is designed for manual zoom
operations.
For systems where a control box has been connected, the zoom
information is sent to the control box via a motorized focus unit or
relay box, and then transmitted to the DS-L3 DS Camera Control
Unit and personal computer.
For the objective, the SHR-Plan Apo 0.5x, 1x, 1.6x, or 2x can be
attached. When combined with the P2-RNI2 Intelligent
Nosepiece, two objectives can be attached.
A focus unit can be connected through the P2-RNI2 Intelligent
Nosepiece or the P2-FM Focus Mount Adapter.
The P2-FMDN Focus Mount can also be attached.
SMZ18 Zooming Body
Usage restriction
Tubes, intermediate tubes and objectives of the previous SMZ series cannot be used.
Images can be zoomed in and out using the zooming knobs on
the right and left sides of the zooming body.
Turning the knob backward: Magnification increase
Turning the knob forward: Magnification decrease
Turning the knob causes the magnification to continuously
change in the range from 0.75x to 13.5x (18:1 zoom ratio).
Magnification values are marked on the zooming knobs.
Click stop of the zooming knobs operates at the positions of
0.75x, 1x, 2x, 3x, 4x, 5x, 6x, 8x, 10x, 12x, and 13.5x. It is also
possible to deactivate the click stop function.
Zoom operation
 Activating and deactivating click stop of zoom operations
Insert the hex driver (nominal designation: 2) supplied with the
focus unit into the hole on the rear side of the right zooming knob.
Turn the internal screw counterclockwise to activate click stop.
Turn it clockwise to deactivate click stop.
0.75
1
2
Activating and deactivating click stop
of zoom operations
Aperture diaphragm
The zooming body is equipped with an aperture diaphragm dial which enables the diaphragm of the right and left optical
paths to be simultaneously adjusted in the range from fully open to 3 mm dia.
For details about using the aperture diaphragm, see Chapter 3, “10 Using the Aperture Diaphragm.”
Magnification
decrease
Magnification
increase
Activating
click stop
Deactivating
click stop