Denz FDC (Flange Depth Controller)
FDC (Flange Depth Controller)https://www.photocineshop.com/en/products/denz-fdc-flange-depth-controller-M9758R?cat=208
The Denz Flange Depth Controller ‘FDC‘ is a new development (patent pending) for the flange depth control of digital video cameras with 54 mm PL-mount.
The determination of the flange depth is based on the cross-fading principle. By means of two lenses two different masks will be projected on the CCD-chip. By turning the adustment wheel the focal position of the Flange Depth Controller to the CCD will be changed. This adjusting of the focal position effects a moving of the projected masks to the CCD.
When the position of the red bar is exactly between the two green bars you can read-out the precise flange depth on the scale of the adustment wheel