Operating Flash Unit, Model 285, on Camera in Manual Mode

(4) Set your camera lens to the f/stop indi-

cated above the distance shown on the calculator

dial distance scale.

NOTE

In manual mode operation, disregard

the color wedges on the flash unit calcu-

lator dial.

(5) As an example, if you are 40-feet from

the subject and you are using ASA 100 film with

the flash head in the NORM position, set your

camera lens f/stop to 12.8.

(6) Slide the flash unit on-off switch to RED

ON position.

CAUTION

To avoid possible damage to the flash

unit, do not shoot more than 25 flashes

in a continuous series. Allow the unit to

rest for four minutes between series.

When the zoom/bounce

b. Zoom Settings.

head is used in TELE (extend) or WIDE (retract)

position, it will affect your f/stop and/or operat-

ing range.

(1) Recheck the calculator dial for the infor-

mation shown.

(2) Refer to table 2-1 to determine your

f/stops. Divide the guide number, for the vari-

ous speeds given by the flash-to-subject distance.

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