Hitachi KP-E500 - Manual (Page 6)

1) Observe the maximum size limit (A in the figure)
When installing the lens. Internal damage can occur
If a larger lens is used.
2) Avoid using a lens that is heavier than the camera.
If unavoidable, be sure to fix the lens itself on a support.
Caution
A heavy lens can disturb the balance with respect to
The camera and possibly result in damage.
C-mount lens: Less than 4.1mm
CS-mount lens: Less than 4.1mm
A
Lens
Lens flange surface
C-mount adaptor is provided for the camera in the factory.
When using a CS-mount lens, unscrew and remove the
C-mount adaptor. Save the C-mount adaptor for possible future.
Note on lens selection Installation of CS-mount lens
8