ISSI LC-2 Operation Manuals page 22

Innovative Scientific Solutions, Inc.
1.) Connect a lens to the adapter to allow the controller to find the lens. It may be in a loop
looking for a lens.
If that does not work:
2.) Open the software and go to the firmware update. Select the firmware and load (even if
the lens won't connect). Disconnect the power. Hold the reset button down. While
continuing to hold down the reset button, re-connect power. Continue to hold the reset
button down until the lights on the Ethernet port begin to flash. Connect lens and try
connecting to the controller again.
Focus Drift
Many lenses experience drift in the focus motor position. This causes the encoder position
associated with a particular focus point to change. This is not an effect of the controller, but
the lens encoder itself.
Lenses will drift a few encoder counts once they hit a stop. The higher-quality lenses (L-series
and with USM) will have far less drift than the cheaper lenses. To account for drift, the focus
range needs to be re-learned by the controller. This can be done using the Focus Init
function in the software (or "refRange" command for API). After the focus range is re-learned,
load the saved preset and it will move to the correct position.
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