15
ADJUSTING THE BACK-FOCUS
All of our Optimo Prime lenses are set with the 52mm industry PL standard flange distance and delivered with a color shim set. If you need to
adjust the back focus flange to fit more accurately to the position of the sensor on the camera, you need to modify the rear color shim thickness.
Please proceed as follow. You can apply this procedure for all of the Optimo Prime lenses and any possible combination of shims can be used
to achieve the required thickness and therefore the required flange focal distance.
- Remove the rear filter assembly (1) by untightening the retainer (2) anticlockwise
- Remove the eight torx screws (3) from the PL mount and remove the PL mount (4)
CAUTION:
pull out the PL mount straightly to prevent from any damage of the connector (5)
- Remove the installed shims (6) by using a flat-bladed screw-driver or a pair of tweezers. Determine the total thickness of the shims already
installed. Increase or decrease the total shim thickness according your needs
CAUTION:
do always put back the aluminum factory shim (7) under the color shims
- Put back all elements in reverse order
2
3
4
5
6
7
1