The CAST-FINE fine adjustment handle is available as an accessory for the CASTEL-Q / XQ II / CROSS-Q. Ideal if In the case of focus staking even finer settings are desirable.
 
The CAST-FINE is simply pushed onto the operating knob and can be adjusted if necessary with a small Hex key.
 
Not usable for CASTEL-L / CASTEL-CROSS MC!