Adjusting the lens flange back – Panasonic AG-HPX300P User Manual

Page 90

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Chapter


Prepar

ation

Adjusting the Lens Flange Back

If images are not clearly focused at both telephoto and
wide-angle positions during zoom operations, adjust the
flange back (distance from the lens mounting surface to the
image formation surface).
Once adjusted, the flange back does not need to be
re-adjusted as long as the same lens is mounted on the
camera.

NOTE

Please also refer to the lens instruction manual for directions
on adjustment and locations of individual lens parts.

1



Mountthelensonthecamera.

• Make sure you connect the lens cable.

2



Setthelensiristomanual,andfullyopenthe
iris.

Approximatelym

3



Placetheflangebackadjustmentchartabout
mfromthelensandadjustthelightingon
thecharttoobtainanappropriatevideooutput
level.

• If the video level is too high, use the filters or the

shutter.

4



LoosentheF.f(Flangefocus)ringclamping
screw.

NOTE

F.b (Flange back) may be indicated on some lenses.

5



Setthezoomringtothetelephotoposition,
eithermanuallyorbyelectricdrive.

6



Shoottheflangebackadjustmentchartand
turnthedistanceringtoadjustfocus.

7



Setthezoomringtothewide-angleposition
andturntheF.f(flangefocus)ringtoadjust
focus.

• Do not move the distance ring during focusing.

8



RepeatStepstountilthelensisinfocusat
boththetelephotoandwide-anglepositions.

9



FirmlytightentheF.fringclampingscrew.

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