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5.2. Control interface
5.2.1.
Knob
1
Mechanical hard stops
2
Panic button
3
Pre-marked focus ring
4
Fingertip concave mold
5
Anti-slip grip
6
Datum line
7
Knob illumination /
status LEDs
The knob is a control interface with an absolute position encoder. Turn the knob clockwise
or counter-clockwise to control the assigend axis. As default the knob is assigned to focus.
5.2.1.1. Mechanical hard stops
The cPRO knob has two mechanical hard stops, which can be adjusted freely around the
knob barrel. The hard stops allow you to move the knob between two focus positions
precisely.
In oder to adjust your long focus distance
-
match the desired long focus distance position to the datum line of the knob
-
open the thumbscrew on the upper hard stop and slide the hard stop around
the knob barrel until it hits the panic button.
-
lock the hard stop position by turning the thumbscrew clockwise
In oder to adjust your close focus distance
-
match the desired close focus distance position to the datum line of the knob
-
open the thumbscrew on the lower hard stop and slide the hard stop around
the knob barrel until it hits the panic button.
-
lock the hard stop position by turning the thumbscrew clockwise
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