Film cameras
Alfon Multi Dedicated User manual
User manual for Alfon Multi Dedicated. 16 pages in English. Read the original PDF, download or print a copy without registration.
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Document details
- Brand
- Nikon
- Model / document
- Alfon Multi Dedicated
- Document type
- User manual
- Language
- English
- Pages
- 16
- File size
- 1.4 MB
- Category
- Film cameras
- Document date
- Not specified in catalog
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Page 1 · Read text
www.butkus.us
MODELS 250/],lD & 280lMD
MULTI-DEDICATED'"
COMPUTER FLASH
FOR: CANON, MINOLTA,
NIKON, PENTAX
WHAT DOES ]TIULTI.DEDICATED'. iIEAN?
"Dtdlsd.d" Oporatlon rneans that the ffash unil automaticalfy
prevents the three most common mistakes made during flash
- !hotogratht,-
1) Forgetting to set the shutter speed to the "X" setting.
2) Shooting before the flash is ready.
3) Forgetting to change the lens F/Stop when changing distance
from the subject.
Countle.ss pictures have been ruined because ol these 3 common
errors.
The Flrth will automatically set the correct shutter speed to "X"
(1/60 - 1/100 second), even if the shutter speed dial has been left at
1/1000 second, or 1 second, or "Automatic", or any setting in
between.
At the same time, a red light will go on automatically inside the
camera viewf inder to tell you that the f lash is charged and ready to
f ite.
The computer inside the flash unit will automatically deliver the
proper amgunt of light regardless of the sublect dtstance (up to
18-20 feet). You only have to set the lens F/Stop once, rntttally' to
match the ASA speed of the film being used'
"Mulll-Dedlc8ted"" means that the Flalh will operate in the
Dedicated Mode with a "Multitude" of carneras:View original page 1Page 3 · Read text
I
---.-j.'.;-Il,-.*
Canono : A-1, AE-1, AV-1, AT-1
Minoltac' : XG-Series (XG-1, XG-7, XG-9, etc.)
XD-Series (XD-5. XD-1 1, etc.)
Nikon@ : EM.FE
Pentax@ : ME Super, MV-1, MV
Also Fits All Non-Dedicated, Hot-Shoe Cameras
The Alfon Flash Unit operates on each of these cameras just like the
Dedicated Flash Unit made or sold by the camera's manulacturer.
For the Canon A-'l and AE-1. however, it is not necessary to
accurately adjust the ASA Dialon the llash unit (this is an important
and required step when using Canon's own flash unit). Instead, the
camera lens F/Stop is simply set once, initially, to match the ASA
speed of the film being used.
THE FLASH IS FUILY INTEGRATED. NO ADAPTERS OR CORDS
ARE NEEOED.
FULL COiIPATIBILITY WITH ALL IION.DEDICATED
HOT-SHOE 35mm CAMERAS:
Thr flmh unll cln bc ured on etl Hot-Shoc, Non-Dcdlcetcd 35mm
clm.n!. A rync cod lr nol rvelleblc.
HOW TO LOAD THE BATTERIES:
Open the Battery Door by sliding the door down. Insert "AA"
Alkaline Batteries according to the 1+; and (-) symbols in the battery
compartment. Close the door.
Follow c.?ofully the (+1 and (-) symbols shown inside the baltery
compertment. The flash unit will not charge if the batteries have
been inserted incorrectly.
CAUTION:
DO NOT USE Ni-Gad (Rechargeable) or low-cost carbon (so-
ctlled "Hoavy Duty") batteries.View original page 3Page 4 · Read text
www.butkus.us
Digitally signed by mike
butkus
DN: cn=mike butkus,mike o=orphancameras, ou=29,
email=mike@butkus.org,
c=US
Date: 2018.12.10 11:10:21butkus -05'00'
1. Battery Compariment Co\rer
2. On/Oll Switch
3. Ready Lamp
4. Exposure Table
5. Hot Shoe
6. Locking Ring "$W,#r
7. Multi-Dedicated Switch (Optional)
8. Notch For Optional Zoom LensView original page 4Page 5 · Read text
HOW TO USE THE FLASH UNIT
1. PREPARE THE FLASH t
Ins-tall the batteries. l? your f lash rs equipped with the optional
Multi-Dedicated switch then please adjust it to match your
camera. Flash models without the switch willadlust themselves
automatically to match your cimera: -
2. Install lhe Flash on the Camera
The orr ofl swrtch shorrld be al "ofl lred area rlQt showtng)
belore rrrslallrng or removlt'lg the f lash f rom lhe cantera Also lhe
knurled lockrrrg rrng should be all lhe way up Hold the f lash ttntt
close to rlsloot and slrde the flash lool tnto lhecamera shoe utrttl
rt stops lf the contact prns "catcfr on the edge ol the shoe yotl
may use the trp of a penol to push the prns up Or you may wrggle
the flash gentlv untrl the foot slrdes rn all lhe way lf tlash is rrot
pushed c:ompletely all the way rnto the camera shoe. lhe f lash
may larl to operate correctly. Ttghten the knurled lockrng rrng
until rt locks the flash securely rnto the hot-shoe . Now you may
turn the llash swrtch lo "on" (red area showtng). \t
3. Walt For Ready-Llle
After turnrng the switch to "on", you will hear a faint humming
sound-the f lash capacitor is being charged. After 8 - 1O seconds
(with fresh batteries) the Ready-Lite on the rear of the flash
should go on. Also, a "Flash-Ready" signal will go on in the
camera's viewfinder.View original page 5Page 7 · Read text
4. Adfutt the Camera Seltlngr
A. Lens Aperture (F/Stop):
when using a conventional non-computer elqbtronic flash unit,
the lens aperture is set according to the output (Guide Number) of
the unit and the camera-to-subject distance. In computer flash the
aperture is set first and the flash output is controlled automatically
by the computer sensor.
You must adjust the lens F/Stop according to the:
-Film ASA Speed.
-Flash computer power setting: Red or Blue dot.
Find the correct F/stop from the redlblue exposurc table
("Auto") on the rear ofthe frash ,*diro
280/rD
Example: Film: 100 ASA 1OO ASA
Computer: Red Dot Red Dot
Lens F/Stop: F/4 F/2.9
Erample: Film: 4OO ASA 4oo ASA
ComF,uter.* Blue Dgl-.* Blue Dot
Lens F/Stop: F/1.t F/,t1
use th6 red setting to obtain maximum flash range. Use the Blue
setting to obtain maximum depth of field.View original page 7Page 8 · Read text
www.butkus.us orr- m 1. Computer Sensor 2. Computer Switch 3. Red Dot 4. Blue Dot 5. White Dot 6. Red Exposure Tabte 7. Blue Exposure TableView original page 8
Page 9 · Read text
B. Shutter Speed:
The shutter speed dial should be set to "Auto" (Automatic
Exposure) for most pictures. However, you may leave it set
at any other speed, except "B". When ine ftash is ready, the
shutter speed will automatically change-over to "X".
lmportant: for Non-Dedicated cameras be sure to set the shutter
speed dial to "X" (usually 1/6O second). Read your camera
manual under "flash".
C. Lens Focus:
You must, of course, adjust the lens for the correct distance.
The "Maximum Ftash Range" of the flash unit on automatic
operation can be determined from the calculator.
Blue Setting: 12 feet Maximum 4.0 mebr)
Blue Setting: 12 Feet
Pictures taken at distances greater than the maximum Flagh
Range will be underexposed (too dark).
The minimum distance for Automatic (Computer) operation
is 3 feet. Pictures taken at closerdistances will be over€xpot€d
(too light). Switch over to "manual" control (lhe,.white" lefiing
on the computer selector switch) for such gituation!.
I{OTE: The maximum and minimum operating ranger rtry
unchanged tor ail fitm speede (ASA).View original page 9Page 10 · Read text
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5. TAKE THE PICTURE
Before taking the next picture be sure to wait for the Ready
Lite to go on again
For best results, wait an extra 10-'15 seconds after the Ready
Lite goes on before taking a picture.
lf you are nol taking another picture soon, remember to turn
the on/off swrtch to "off". This will extend the lile of your
batteries.
6. Speiial Sltuations
A. Non-Flash Photography with the Ftash Attached:
When the llash switch is turned to "off",'the camera returns
to normal, non-flash. Automatic operation (or Manual) You
may, therefore, leave the flash attached to the camera even
d uring outdoor Photog raPhY.
B Flash at Large Distances:
For taking photos beyond the Auto Flash Range (18 feet
max), please switch the Computer Power Control to white
(manual). Use the Manual Exposure Calculator on the rear
of the flash unit to find your F/Stop.
Example: Film: 1OO ASA
Dista nce: 40 feet
F/Stop: F/2
Be sure to re-adjust the F/Stop every time you change the
shboting distance.View original page 10Page 11 · Read text
C. USING GUID€ NUMBERS TO CALCULATE EXPOSURE
lf your f ilm speed or your camera-to-subject distance is not on
the Exposure Calculator, please proceed as follows:
Divide the "Flash Guide Number" (you will find it in the table
below) by the "camera-to-subiect distance". The result is your
F/Stop.
FLASH GUIDE NUMBER
= LENS F/Stop
Camera-to-Subiect Distance
Examole:
Distance: 10 feet Film: 160 ASA
GN Table Shows: 86
To f ind F/Sto'p: Divide 86 by 10 = F/8.6
Examole:
Distance: 50 feet Film: 400 ASA
_ GN Table Show' 136
136 F/Stop = 2.1
- 50
Guide Numbers in Feet (ASA-FEET):
ASA Fllm Speed 25 50 64 80 100 125 160 200 400 800
34 48 54 60 68 76 86 96 136 192View original page 11Page 12 · Read text
www.butkus.us Guide Numbers in Feet (ASA-FEET):
ASA Fllm Speed 25 50 64 80 100 125 160 2OO 4OO 800
GN 34 48 s4 60 68 76 86 96 136 192
D. CAMERAS WITH AUTOMATIC LENS SETTING ("Auto Flash"
Feature)
Some cameras have an automatic feature which sets the correct
lens aperture (F/Stop) as you focus.
All you have to do is set the correct guide number (see table
above) on the camera's Guide Number Scale (see your camera
instruction manual).
Remember to set the Flash Computer Selector Switch to the
"WHlTE" (Manual) Position.
7. HOW TO USE THE OPTIONAL ZOOM LENS
The 3-position zooin Iens delivers proper nghting coverage when
using camera lenses of focal lengths f rom 35mm to 85mm.
The zoom lens has 3 "click" positions at:
A) Closed position "W" -Wide Angle - 35mm lens
B) Middle position "N" -Normal - 50mm lens
C) Extended position "T" -Telephoto - 85mm lens
Simply set the zoom lens to the setting that comes closest to the
focal length of your camera lens.
The "Maximum Flash Range" of the flash unit is increased by 2
feet when used at the Telephoto ("T") setting:
Red computer setting: 20 feet maximum (6 meter)
Blue computer setting: 14 feet maximum (4.3 meter)
The camera lens (F/Stop) should always be set according to the
redlblue calculator dial regardless of the f lash zoom lens position.
The zoom lens can be removed f rom the f lash unit by f irst moving
it to the "T" position and then pulling out the rcar ol each zoom
track until it snaps out of the notch on the flash unit.
The Zoom Lens can be re-installed but it is not an easy task'View original page 12Page 13 · Read text
(250/280!HELPFUL HINTS
1. BATTERIES
o Check batteries f or f reshness when you purchase them. (Most
stores have a batlery tester).
. Turn switch to "OFF" between pictures.
o Replace batteries when recycling time exceeds 30 seconds.
r Remove the batteries if not using flash for a long time.
r Loading The Batteries: Please be careful when inserting the
batteries. Pushing them in too forcefully will bend the flash
contacts downwards and prevent them f rom making contact with
the batteries. lf this happens, simply lift the tips of the flash
contacis gently with your f inger or with a pe,ncil.
o lf Your Flash Unit ls Not Charging Properly:
-Be sure your batteries are f resh Alkaline type batteries.
-Be sure the batteries are properly inserted, and the switch is
"on" (red area must be showing).
-Check to see if the battery contacts are "collapsed" (bent
downwards too much). Lift them if necessary.
-1ry a different brand of batteries. There are differences
between batteries.
-Donl-use reCFaifiEaU'Ie (Ni-Clad) batteriff'They could
damage the f lash unit.
2. BACKGROUNDS:
- Keep your subject close to the background. Try to use a bright colorf ul backg round
-- Avoid dark walls or large halls.
- Flash pictures taken at night outdoors will be dark. Open the lens aperture setting one or two exlra F/Stops.View original page 13Page 14 · Read text
3. DISTANCE www.butkus.us
When shooting at dista nces greater than'l 5-20 feet. wa it an extra
10-'15 seconds after the Ready Lite goes on. This allows the unit
to become f ully charged.
4. lf Your Flash Unit Does Not Flash
r First - Remove the flash unit f rom the camera.
o Check proper placemenl ol batteries.
o Ctreck ON/OFF Switch (red area visible means "ON").
. lf you can hear a humming norse. wait a while longer.
o lf Ready Lite f inally comes on (after 30 seconds or nrore) - you
need fresh batteries
o lf in doubt about your batteries, ask your Photo Dealer to test
- theo lor you .;>+
Remember: The Flash will not lire if the f lash onloff switch is at
"off"
5. BEFORE YOU GO ON A TRIP OR BEFORE YOU TAKE ANY
ESPECIALLY IMPORTANT PICTURES:
Please shoot one roll and check the results.
6. Sometimes people's eyes appear red in flash pictures. This is
most common when your subject has blue eyes. You can
minimize the red reflections by turning on all the lights in the
room. Then ask your subject to look directly at one of the room
lights (this will cause the eye pupil to close slightly, th us red ucing
the amount of ref iection).View original page 14Page 15 · Read text
7. You can keep your f lash capacitor operating at peak efficiency
by letting the flash unit charge up about once a month and liring il
several times.
SPECIFICATIONS
-Guide Numbers: 34 - (ASA 25)
68 - (ASA 100)
-Auto F/Stops: F/4 & F/5.6 (ASA 100)
(and ManualSetting)
-Auto Range: 3 - 18 feel (1-5 meters)
(3-20 feet with Zoom)
-Shoe Lock: Positive-GriP screw
-Siroe Contact Pins: 5
-Power Source: 2 "AA" Alkaline cells
-Flash Speed: 1/1000 to 1/30,000 seconds
Time: 9-1 0 seconds (Thyristor: 0.5-8 sec.) "Recycle -Number of f lashes: UP to 200
-Weight: 5 oz. (w/o batteries)
-Battery Door: "Easy-Slide"
-Size: 4" High x 2'/o" Wide x 2" DeepView original page 15From the M. Butkus archive. Original publisher and archive notices are retained.
Check the model and edition against your equipment.
PDF verified 2026-10-10.