autofocus control - CRIFF and Definite focus

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Josef Gotzmann Josef Gotzmann
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autofocus control - CRIFF and Definite focus

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Dear List,

We are in the process of installing a hardware autofocus on a spinning disc
system on an AxioObserver stand.
Does anybody have experience with ASI's CRIFF (Continuous
Reflective-Interface Feedback Focus System) technology mounted on a camera
port. Preferably somebody could also share experience or possibly comparison
to "Definite Focus" from Zeiss.
I am also open to other suggestions.
Any help is highly appreciated.
Best,
Josef