Flashes & lighting
Kodak Flasholder Model B User manual
User manual for Kodak Flasholder Model B. 13 pages in English. Read the original PDF, download or print a copy without registration.
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Document details
- Brand
- Kodak
- Model / document
- Kodak Flasholder Model B
- Document type
- User manual
- Language
- English
- Pages
- 13
- File size
- 2.9 MB
- Category
- Flashes & lighting
- Document date
- Not specified in catalog
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•
Kodak Flasholde
MODEL B
T H E KODAK FLASHOLDER M o d e l B can be used w i t h any Kodak camera
equipped w i t h a Kodak flash shutter. I t consists of a reflector, a battery
case, a 15-inch cord w i t h a bayonet connector, and either a standard
camera bracket or a special camera bracket for mounting the Flasholder
onto a Kodak Reflex Camera. The table on the reflector gives the
exposure guide numbers at 1/50 second for several Kodak Films w i t h
suitable flash lamps.
ATTACHING
The standard camera bracket is provided w i t h several holes to permit
the selection of the one most suitable for the particular Kodak camera.
T o attach the bracket to the camera, select the proper hole, insert the
large thumbscrew in the hole, and screw it into the tripod socket in the
camera. Best results w i l l be obtained when the bracket is attached so
that the center of the reflector w i l l be higher than the camera lens. I f the
flash lamp is below the camera lens, the lighting effect on faces w i l l be
unnatural.
Consult the instruction manual packed w i t h your camera for any spe-u
cial directions that may apply to attaching the Flasholder to your camera.
BATTERIES J
Batteries must be installed in each Flasholder. Batteries are not supplied
w i t h the unit but are readilv obtainable from vour K o d a k dealer.
T o install batteries, unscrew the black Tenite battery case from the
gray Tenite head. Install two size " C " photoflash batteries or, if these
are not available, flashlight batteries. Insert the batteries i n the case
w i t h their center contacts up; then screw the battery case back into the
head. Slip the Flasholder into the ring clamp of the bracket assembly
and tighten the knurled screw that controls the friction pad to hold it i n
place. O n l y moderate pressure is required. The Flasholder can be
T. M. Reg. U. S. Pat. Off.View original page 3Page 5 · Read text
_
_
inserted in the ring clamp either way and can be turned in any direction.
Important: Successful synchronization, especially at high shutter speeds, _
requires batteries that will test at least 5 amperes. Batteries that have
been stored for long periods, especially under conditions that allow them
to dry out, w i l l not be satisfactory.
CONNECTIONS
Connect the cord directly to the flash terminal on the shutter or camera. _
T o make the connection, place the bayonet connector on the cord over
the terminal, push it i n , and t u r n it clockwise. T o remove the connector,
push it in, turn it counterclockwise, and pull it off the terminal.
FLASH LAMPS
Kodak Flasholders are designed for S M , SF, No. 5, No. 5B, No. 25, and _
No. 25B flash lamps. T o insert a flash lamp, place the two pins i n the
base of the lamp in the slots i n the socket; then push the lamp straight
into the socket, without twisting it.
T o eject a lamp from the socket, press the black ejector button on the
back of the Flasholder head all the way in.
Caution: Do not insert a flash lamp in the socket if the shutter is set on " T " and
the shutter blades are open. The lamp may flash and a serious burn may be the result.
Never try to pull a lamp out of the socket. Always use the ejector button.
Pulling lamps out by force will damage (he socket.
Flash lamps remain too hot to handle for several minutes after they are fired.
K O D A K FLASH SHUTTERS
Three types of Kodak Flash Shutters are in use—those w i t h and those
without scale nuts but w i t h synchronizer
levers and those without either scale nuts or _
synchronizer levers. Those w i t h scale nuts
must be preset for the class of l a m p being
used. Shutters without scale nuts require no _
presetting, but a slightly different proce-
dure is followed for each class of lamp.
FLASH SHUTTERS WITH A SCALE NUT
T h e synchronizer scale on the shutter has
two positions: F for Class F lamps, such as _
the S M or SF flash l a m p : and M for Class
M lamps, such as the No. 5 or N o . 25 flash
lamp. T o insure accurate synchronization,
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the scale must be set at the correct
position.
T o set the scale, loosen the SCALE
NUT w i t h a small screwdriver, shift the
scale so that the proper letter is oppo-
site the arrow, and tighten the nut securely. O n some shutters the scale nut
is of the plunger type and no screwdriver is needed. Once the scale has
been set, do not change i t as long as lamps of the same class are used.
To Take Flash Pictures (Scale Nut Shutter)
After the Flasholder has been connected to the camera, insert a flash
lamp i n the socket. Push the l a m p straight in, without twisting it.
Before taking the picture, cock the shutter* i n the usual way. T h e n
cock the SYNCHRONIZER LEVER by pushing it toward the synchronizer
scale as far as it w i l l go. The synchronizer lever must always be cocked, or the
flash w i l l not be synchronized.
T o take the picture, release the shutter i n the normal manner. The
synchronizing mechanism built into the shutter automatically insures
that the shutter is open when the flash of the lamp is brightest.
SHUTTERS WITHOUT A SCALE NUT
(But with a Synchronizer Lever)
I n K o d a k Flash Shutters without a scale nut, the synchronizing interval
for Class F lamps, such as the S M or SF flash lamp, is automatically
controlled by the action of the shutter blades—the synchronizer lever is
not used. W h e n the synchronizer lever is used, the shutter is synchro-
nized w i t h Class M lamps, such as the No. 5 or No. 25 flash lamp.
Class F lamps w i l l not synchronize consistently w i t h Kodamatic or
Supermatic Shutters without scale nuts at speeds faster than 1/100L
second. However, w i t h flash lamps, the exposure time is limited by the
duration of the flash which, in the case of S M or SF flash lamps, is about
1/200 second. Thus, shutter speeds of 1/100 second or longer w i t h S M
or SF flash lamps result in an exposure of 1/200 second—short enough
to stop all motion normally encountered.
*On some Kodak cameras the shutter is automatically cocked as the film is advanced.View original page 6Page 7 · Read text
To Take Flash Pictures (Shutter without Scale Nut but with Syn-
chronizer Lever)
W i t h Class F lamps, such as SM or SF flash lamps:
1. Insert the l a m p i n the reflector.
2. Cock the shutter i n the usual way. *
3. Release the shutter. Do not use the synchronizer lever.
W i t h Class M lamps, such as No. 5 or No. 25 flash lamps:
1. Insert the l a m p i n the reflector.
2. Cock the shutter i n the usual way.*
3. Press the synchronizer lever clockwise as far as it w i l l go.
4. Release the shutter.
FLASH SHUTTERS WITHOUT SCALE NUTS OR SYNCHRONIZER LEVERS
Flash Kodon Shutter:
W i t h Class M lamps, set shutter at " B . "
W i t h Class F lamps, set shutter at " I . "
Kodak Flash Dakon, Flash Diomatic, and Flash 200 Shutters
W i t h Class M lamps, set shutter at 1/25, " T , " or " B . "
W i t h Class F lamps, set shutter at 1/25, 1/50, or 1/100.
Important: Be sure all contacts are clean, including the soldered one on
the l a m p base.
Exposure
Always consult your camera manual for specific information that may
apply to making flash pictures w i t h your camera.
T o find the correct exposure, select from the table on page 7 or on the
reflector the exposure guide number for the film, lamp, and shutter
speed. Divide this number by the distance i n feet from the lamp to the
subject. T h e answer is the recommended lens opening.
For example, the exposure guide number for the No. 5 or N o . 25
flash lamp at 1/200 second w i t h K o d a k Plus-X Panchromatic F i l m is
80. A t 10 feet (lamp-to-subject distance), 80 divided by 10 = 8 o r / / 8 ;
at 5 feet, 80 divided by 5 = 16 or //16, etc.
Caution: Since lamps may shatter when flashed, the use of a Kodak 2- Way Flash-
guard or other transparent protective device over the reflector is recommended. Do
not flash the lamps in an explosive atmosphere.
*On some Kodak cameras the shutter is automatically cocked as the film is advanced.
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FLASH LAMP EXPOSURE GUIDE NUMBERS FOR KODAK FILMS
AND ONE FLASH LAMP NEAR THE CAMERA
Lamp SM or SF No. 5 or No. 25
B to B to Shutter
1/25 1/50 1/100 1/200 1/25 1/50 1/100 1/200 Speed
Kodak Panatomic-X 50 50 45 40 100 80 75 60
Kodak Verichrome 60 60 55 45 110 90 80 65
Kodak Plus-X 75 75 65 55 140 110 100 80
Kodak Super-XX 110 110 95 75 200 160 140 110
Kodachrome Type A 45* 45* 40* 35* 701 60 f 55 f 401
Kodacolor Type A 50 50 45 40 100 80 75 60
•With SM lamps, no filter.
With SF lamps, use a Kodak Light Balancing Filter No. 81A.
tWith No. 5 lamps, use a Kodak Light Balancing Filter No. 81C.
With No. 25 lamps, use a Kodak Light Balancing Filter No. 8lD.
BLUE COATED FLASH LAMP EXPOSURE GUIDE NUMBERS FOR KODAK COLOR FILMS
(For u » indoors without daylight)
Lamp No. SB Lamps No. 25B Lamps
Shutter B to Bto
1/100 1/200 1/100 1/200
Speed 1/25 1/25
Kodachrome Film
Daylight Type 45 30 25 55 40 35
Kodacolor Film
Daylight Type 70 50 40 70 50 40
Kodak Ektachrome Film
Daylight Type 40 30 22 45 35 30
Note: Synchronization of flash pictures at high shutter speeds requires
batteries w h i c h deliver at least 5 amperes when short-circuited. Batteries
w h i c h have been stored for long periods, especially under conditions
w h i c h permit them to d r y out, w i l l not be satisfactory.
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THE 3-FOOT EXTENSION CORD
The Kodak 3-Foot Extension Cord for Kodak Flasholder, which is
available as an accessory, permits the Flasholder to be used far enough
away from the camera to secure improved modeling. This is of particular
advantage in making flash pictures of people, which tend to be rather
flat in appearance when the light comes from a position close to the
camera. Compare pictures A and B at right. I t is also helpful w i t h many
other types of subject.
T o use the extension cord, attach the bayonet connector to the flash
terminal on the shutter or the camera. T h e n attach the cord from the
Flasholder to the other end of the extension cord. These connections
should be made before a flash lamp is inserted in the Flasholder.
I n some cases, the Flasholder can be held in one hand and the camera
Three pictures
and how
they were made
Flasholder at the cam-
era. Flat lighting.
Flasholder with 3-foot
Extension. Harsh shadows.
Flasholder with 3-foot
Extension and a reflector on
the shadow side. Well-bal-
anced illumination.
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i n the other, but it is generally more convenient to compose the picture
w i t h the camera supported on a tripod, table, or some other firm sup-
port. Often you can ask someone else to hold and aim the Flasholder
while you hold the camera w i t h both hands.
W i t h the extension, it is desirable to use an auxiliary reflector to
reflect some of the light from the Flasholder back onto the shadow side
of the subject. For this purpose, a large white card, a sheet, or a projec-
tionscreen can beused; the resulting improvement is shown in picture C.
Such an auxiliary reflector is most effective when the light reaches the
subject at an angle from the camera-subject axis. I n most cases, it is also
desirable to hold the Flasholder about two feet higher than it w o u l d be
if it were attached to the camera; in this way, shadows, which might
otherwise be objectionable, can be thrown downward, out of the picture.
U
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5HORTING PLUG
The coin-slotted shorting plug i n the side of the head, opposite the point
where the cord comes out, must be in place whenever the Flasholder is
used alone. W h e n a Kodak Flasholder Extension U n i t M o d e l B is used
w i t h the Flasholder, the shorting plug is replaced by the cord from the
Extension U n i t . Complete instructions for connecting and using K o d a k
Flasholder Extension Units M o d e l B are included w i t h each unit.
SUPPLEMENTARY FLASH FOR OUTDOOR COLOR PICTURES
W i t h bright sunlight and a clear blue sky, the contrast of the natural
light is frequently too high to permit best results on color films, particu-
larly w i t h nearby side- or backlighted subjects. No. 5B or No. 25B flash
lamps provide a convenient means of illuminating shadow areas w i t h
light approximating daylight in color quality. Thus the lighting contrast
between highlights and shadows can be reduced to a more suitable ratio
for color pictures. A No. 5B or No. 25B flash lamp used at a distance of
about 8'/2 feet provides a desirable lighting ratio.
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SUPPLEMENTARY FLASH TABLE
For Use HI Bright Sunlight with Front or Sido Lighting
Sot Shuttor of 1/50 Second
Kodacolor Film Daylight Type
Kodachrome Film Daylight Type Between f/5.6 and//8
Kodak Ektachrome Film Daylight Type //6.3
The F l a s h K o d a g u i d e is a four-page, pocket-size, dial-type calculator
designed especially for computing the proper lens setting to make pic-
tures—indoors or o u t — w i t h one or two flash lamps.
O n the back page of the Flash Kodaguide is a comprehensive table
of exposure guide numbers for the most frequently used K o d a k Films,
both black-and-white and color, and common flash lamps used at
various shutter speeds. Obtainable from Kodak dealers.
EASTMAN K O D A K C O M P A N Y • ROCHESTER 4, N. Y.
6-50-GLP-AEX L I T H O G R A P H E D IN T H E U N I T E D S T A T E S O F A M E R I C A
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