FujiFilm UA125x8BESM-S35, Operating Manual

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-･8･-
The･flange･focal･length･is･the･distance･from･the･flange･(mounting･surface)･of･a･lens･to･the･focal･plane.
If･the･focal･plane･of･the･lens･does･not･coincide･with･the･
image･plane･of･the･camera,･the･object･will･be･out･of･
focus･during･a･zoom･operation.
To･prevent･this･from･happening,･the･adjustment･of･the･
flange･focal･length･is･required.
Make･sure･to･carry･out･the･adjustment･when･installing･
the･lens･to･a･camera･for･the･first･time･or･installing･it･to･
another･camera.
7.1 Conditions of Object and Iris Position
Object･ :･ an･object･that･provides･clear･and･easy･focusing･even･at･the･wide･end
Object･distance･ :･ about･7.5m･(measured･from･front･glass･of･the･lens)
Iris･position･
:･ maximum･aperture･or･near･that･condition
7.2 Adjustment
Carry･out･the･adjustment･observing･a･monitor.
For･the･operation･of･focusing･and･zooming,･refer･to･sections･“Focusing･Operation”･and･“Zooming･Operation･(page･
8).･
a.･ Loosen･the･F.f･locking･knob･by･rotating･it･counterclockwise.
b.･ At･the･wide･end･in･the･zoom･range,･focus･on･the･object･by･means･of･the･F.f･adjusting･knob.
c.･ At･the･tele･end,･focus･on･the･object･by･means･of･a･focus･control･unit.
d.･ Repeat･steps･ ‘b’ ･and･ ‘c’ ･several･times･so･that･the･F.f･is･adjusted･completely.
e.･ Finally･tighten･the･F.f･locking･knob･by･rotating･it･in･the･direction･of･the･arrow.
Note. ･ Before･adjustment,･set･the･macro･ON/OFF･select･switch･on･this･lens･to･OFF.･･If･a･remote･macro･control･
unit･(EA-3A-10A,･11A,･etc)･is･linked･to･this･lens,･set･the･remote･macro･ON-OFF･select･switch･on･the･
unit･to･OFF.
Flange
Focal Plane
Flange Focal Length
LENS RIGHT-HAND VIEW
F.f ADJ. KNOB
F.f LOCKING KNOB
７. ADJUSTMENT OF FLANGE FOCAL LENGTH