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6.2.3.5.1.3. Cinefade mode
The Cinefade mode allows to vary depth of field in film to gradually transition between a
sharp and a blurry background at constant exposure. To achieve this effect, the cmotion
Cinefade VariND filter has to be paired with an LBUS compatible iris motor. Through the
cPRO / cPRO PLUS or cPRO ONE hand unit, depth of field can be changed dynamically
(up to 5 T-stops within optical safe range) while maintaining a constant exposure.
6.2.3.5.2.
Optical safe range
The optical safe range menu allows you to turn the optical safe range ON or OFF. With
optical safe range turned ON, the system displays recommended limits for the VariND
filter in Cinefade mode and limits the filter to ND1.9 in VariND mode. When optical safe
range is turned OFF, the Cinefade mode and the VariND mode allow a wider range for
the Cinefade effect and a VariND upto ND2.7. But, optical imperfections, such as a slight
colour cast and cross pattern may become visible in the image.