Panasonic AJ-HDC27V, AJ- P operating instructions Adjusting the lens flange, Adjustment method

Adjusting the lens flange

If the subject is not focused properly in the telephoto and wide-angle modes during zoom operations, adjust

the flange back (distance from the lens mounting surface to the image-forming surface).

Once this adjustment is done, it need not be redone unless the lens is replaced.

Adjustment method

<Note>

For details on the adjustment method and lens positions, refer also to the operating instructions that accompany the lens.

Approx. 3 meters

1	Attach the lens to the camera.
	At this stage, do not forget to connect the lens
	cable.
2	Set the lens aperture to manual and open the
	aperture.
3	Set the lighting in such a way that the appropriate
	video output level is achieved at a distance of
	about 3 meters away from the chart used for the
	flange back adjustment.
	If the video level is too high, use the filters and
	shutter.
4	Loosen the screw securing the F.f (flange focus)
	ring.
	<Note>
	On some lenses, this may be marked as F.b
	(flange back) ring.
5	Set the zoom ring to the telephoto position either
	manually or electrically.

6	Shoot the chart used for the flange back
	adjustment, and turn the distance ring to adjust the
	focus.
7	Set the zoom ring to the wide-angle position, and
	turn the F.f ring to adjust the focus.
	Take care not to move the distance ring during this
	process.
8	Repeat steps	5 to 7 until the focus is adjusted at
	both the telephoto and wide-angle positions.
9	Tighten the screw securing the F.f ring.

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