Film cameras
Quantaray QTB-7500A AKA: Promaster User manual
User manual for Quantaray QTB-7500A AKA: Promaster. 13 pages in English. Read the original PDF, download or print a copy without registration.
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Document details
- Brand
- Quantaray
- Model / document
- Quantaray QTB-7500A AKA: Promaster
- Document type
- User manual
- Language
- English
- Pages
- 13
- File size
- 1.1 MB
- Category
- Film cameras
- Document date
- Not specified in catalog
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Page 4 · Read text
www.butkus.us
FLASH DEDICATION
This flash unit requires Interchangeable Dedicated Module to fit the following dedicated mating cameras
for dedicated flash operation.
O Please see Module Instructions fo details of operation of this flash unit.
AF MODU LES: -
O AF MODULE CN is for CANON EOS 650,620.750,850,630, 10, REBEL, ELAN, etc
O AF MODULE ML is for MINOLTA N4AXXLTM 7000,9OOO,5OOO
a AF t/ODULE MLi is for MINOLTA MAXXUM 7000i.3000i.5000i,8000i, 7Xi,3Xi, etc
a AF MODULE NK is f or NIKON N2020, N4004, NBO08, N6OO6
O AF MODULE YS is f or YASFIICA 2304F. 2004F
o AF MODULE PX is for PENTAX SFi/SFX, SF1N. SFlO/SF7
. AF MODU LE OM is f or O LYMPUS OM7O7/OM.77 AF
NON-AF MODULES: -
o MODULE cN is for cANoN A-1, AE-l, AE-l Program, New F-l, AV-1, AL-l, AT-1, T5o, T7o
O tulODULE ML is for MINOLTA XD Series, XG Series, X700, X570, X370
o MODULE PX is for PENTAX ME-Super, ME-F, MV, MG, LX, Super A Program, Program Plus,
43000, P3N
O MODULE NK is for NIKON FE, EM, FE2,FA, FG, FM2, FG2O, N2090
o MODULE RC is for RICHO XR-Series, KR-Series, XR-P, XR-M/XR-X
o MODULE YS is for YASHICA FX-series
. MODULE OM is for OLYMPUS OM1, OM2, OM2N, OMl0, OM4, OMF, OMG, OM2S, OM.PC,
o MODULE ST is for STANDARD SLR cameras
o As different models of cameras operate differently for f lash photography, you should read
the Instructions Manual of your camera for details of flash operation.
o Before attaching the Module onto the Flash Unit always make sure that the Module and the
Flash Unit contact points are all clean. The stain or dirt on surface of the contact points
on the Module side or on the Flash Unit side may cause malfunction. You may use soft
cloth to clean the contact points on both sides.
P.2View original page 4Page 5 · Read text
ATTACHING AND DETACHING THE DEDICATED MODULE 1. To attach the module, position the right-side fixed attachment hook onto the flash unit and then It
push the left-side of the module upward until the left-side movable attachment hook clicks into
position.
2. To detach the module, press the release button
on the left-side of the module and while pressing
the button, detach the module.
The righi-side fixed
attachment Hook
The left-side
movable
attachment Hook
Release
B utton
IMPORTANT NOTES: c WHEN ATTACHING THE MODULE ONTO THE FLASH UNIT OR
DETACHING THE MODULE FROM THE FLASH UNIT, ALWAYS
MAKE SURE THAT THE POWER OF THE FLASH UNIT HAS BEEN
SWITCHED OFF
DO NOT ATTACH THE FLASH UNIT TO THE MODULE WHILE THE
MODULE IS MOUNTED ON THE CAMERA.
WHEN MOUNTING THE FLASH UNIT WHICH HAS BEEN ATTACHED
TO THE MODULE ONTO THE CAMERA, ALWAYS MAKE SURE THAT
THE POWER OF THE FLASH UNIT HAS BEEN SWITCHED OFF.
USE THE DEDICATED MODULE ONLY WITH THE DESIGNATED
MATING CAMERA. USING IT WITH NON-MATING DEDICATED
CAMERA MAY CAUSE DAMAGE TO THE CAMERA, THE FLASH
UNIT, THE MODULE OR ALL.
It is important to follow the above instructions. Otherwise, it may
cause damage to the flash unit, the module, the camera or all.View original page 5Page 6 · Read text
J www.butkus.us BATTERY OPERATION
i. Open the battery compartment cover
ii. Insert four 1.5V penlight batteries following the (+) (-) sign as
indicated inside and replace the cover.
IMPORTANT:
O THE BATTERIES SHOULD BE INSERTED IN CORRECT POSITION
O FOR BEST RESULTS, USE ALKALINE BATTERIES
O USE FRESH BATTERIES REGULARLY
AF ILLUMINATOR FOR AUTOFOCUSING
When the camera's operating button is pressed halfway, the AF illuminator is automatically activated
when required, with low+ontrast subjects in low light. This illumination enables the camera'sautofocus
system to determine focus status and adjust the lens.
The AF llluminator enables autofocusing with subjects up to about 16 feet away. This distance is for
autofocusing only, when focusing manually, flash photography is possible up to about80 feet, when
using ASA 100 and F1.4 aperture (please refer TTL Auto Flash range table)
NOTE: The working range for the AF llluminator is based on standard test method with a 50 MM lens.
lf longer focal lengths are used, the camera may not focus lens accurately. ln this case or
whenever focus signals blink, set focus mode of the camera switch to M and focus lens manually.
AUTO CHECK LAMP
On TTL Auto f lash mode or Normal Auto flash mode, if exposurc r'r,as sufficient, the auto check lamp on
the flash urrit glows at the same moment when the shutter button of the camera is pressed.
On Normal Auto flash mode, before actually taking the photos, you can check whether the shooting
distance is within the automatic range by pressing test flash button on the flash unit.
AUTO POWER-OFF
A battery-saving automatic power-off circuitry is incorporated in this flash unit. The battery power of the
flash unit will be automatically turned off within approximately 5 minutes and the ready indicator LED
lamp extinguishes itself. With AF module on some dedicated mating cameras, the flash can be re-activated
for firing by touching the shuttter-release button of the camera. iVith other modules, the flash can be
re-activated for firing by pressing once the Reset flash button on tire flash unit or by switching the
flash unit OFF and then ON again.
P.4View original page 6Page 7 · Read text
TTL AUTO FLASH OPERATION J
This flash unit provides automatic Through-The-Lens (TTL) control of the flash exposure when used with
dedicated cameras which have TTL Auto Flash Metering feature.
This auto mode permits you to use any lens aperture within the f lash unit's operating range to enable you
to have greater control over depth of field. The larger the aperture (the smaller the f-number) you select,
the greater the maximum shooting distance (the less the depth of field but the shorter the recycling time
between shots). On the other hand, the smaller the aperture (the greater the f-number) you select, the less
the maximum shooting distance (the greater the depth of field but the longer the recycling time).
Therefore, in selecting an aperture, all three factors - maximum shooting distance, depth of field andflash recycling time should be taken into consideration.
(**Please note that when demonstrating TTL Auto Flash function there must be film inside the camera)
TTL AUTO FLASH RANGE:
ASA FILM IN USE ZOOM FLASH HEAD POSITION
100 200 400 1000 W+DIFFUSER WIDE NORMAL TELE
Ft 12 - g',t Ft 1.4 2 2.8 4 7-38Ft 7 - 62Ft 10-71
2 2.8 4 5.6 6-27 Ft 6-27 Ft 8-50Ft 10-56Ft
2.8 4 5.6 8 5- 19 Ft 5-31 Ft 7-35Ft 9-40Ft
4 5.6 8 11 4- 13 Ft 4-22Ft 5-25Ft 6-28Ft
10 Ft 3-16Ft 3-18Ft 5-20Ft 5.6 I 11 16 3 -
14 Ft 8 11 16 22 3-7Ft. 3- 11Ft 3-12Ft 5 -
10 Ft 11 16 22 3-5Ft 3- 8Ft 3- 9Ft 4 -
16 22 3-4Ft 3- SFt 3- 6Ft 4- 7 Ft
22 3-3Ft 3- 4Ft 3- 4Ft 4- 5Ft
The TTL Automatic mode of this flash unit balances the exposure between the main subject illuminated
by the flash and the background in ambient light, whenever possible. Thus, this TTL mode can be used
under conditions ranging from total darkness to fill-in flash.
P.5View original page 7Page 8 · Read text
www.butkus.us NORMAL AUTO FLASH OPERATION
This flash unit which has been attached to the non-AF module has three auto flash operation settings
F5.6 on the Module for shooting designated by the colours, BLUE - F2, YELLOW - F4, *GREEN - up to 56 feet,28 feet and 20feet respectively when using ASA 100 film.
* Non-AF Module CN does not have this setting
USING THE EXPOSURE CALCULATOR
(a) At Normal Auto Operation for Standard SLR Cameras.
(1) Set INDEX line of the ASA/DlN film selector switch to the ASA/DlN speed of the f ilm in use.
l2l Read along the auto line (blue or yellow or green according to your auto range setting selectedl
and find the corresponding f-number for auto operation. Set this aperture on your camera.
(b) At TTL Auto Operation for Dedicated TTL Cameras
(1) Set lNDEX line of the ASA/DlN film Selector Switch to the ASA/DlN speed of the fitm in use.
Ql Focus on your subject and note the f lash to subject distance.
(3) Locate the lens aperture you wish to use for TTL Auto Operation and read the distance
opposite this selected aperture to check whether the f lash to subject distance is within auto
range. lf it is, set the aperture on your camera.
(c) At Manual Flash Operation
(1) Set lNDEX line of the ASA/DlN Selector Switch to the ASA/DlN speed of the fitm in use.
Ql Focus on your subject and note the f lash to subject distance. Locate this distance on the
d istance scale.
(3) Read the aperture opposite this distance and set the f-number on your camera.
LOWER POWER MANUAL FLASH
At Manual Flash Oper"ation, you can set the flash unit's Mode Selector Switch to'l/16'power position,
rl which will give you faster recycling time and more number of flashes. lt is useful for close-up works and
the shooting with motor-drive film winder (up to 2 frames per second). Guide number at this lower oower
setting is 1/4 of the fullpower guide number (please see Guide Number Table).
P.6View original page 8Page 10 · Read text
DUAL FLASH LIGHTS www.butkus.us
You can enjoy dual flash lights with the sub-reflector. Slide the sub-reflector switch to "1" position.*
as Dual flash lights - f rom the main and sub-reflectors will give you a variety of flash techniques illustrated, if you do not want to use the sub-reflector, sl ide the sub-reflector switch to "0" position.
It is recommended to operate double flashes with sub-reflector sw,itch ON for bounce f lash opelation
Single flash with sub-reflector switch OFF is desirable for direct straight flash.
/ \\
t:
*
P.8 PRINTED IN HONG KONGView original page 10Page 13 · Read text
Auto Aperture Settings: F2, F4, * F5.6 when at ASA 100
Auto Operation Range: (Approx.)
AUTO RANGE AUTO ZOOM FLASH HEAD POSITION
SELECTOR APERTURE
POSTTION SETTING W-Diff user Wide Normal Tele'
h' ASA1OO BLUE F2 6-21 Ft 6-43 Ft 8-50 Ft 10-56 Ft
ASA1OO YELLOW F4 4-13 Ft 4-22 Ft 5-25 Ft 6-28 Ft
ASAlOO*GREENI * F5.6 3-10 Ft 3-16 Ft 3-18 Ft 5-20 Ft
Hr$ * Non-AF Module CN does not have this setting
H
AF ILLUMINATOR:.
H
K.r The illuminator is automatically activated for autofocusing when required, with low-contrast subjects
in low light. The range is up to about 16 feet, based on standard test method with 50 mm lens.
ffi'il
Colour Temperature : Same as sunlight during day
q Bounce Angle : 0o 90o -,i (Ctict< Stop: 0o, 45o, 600, 75o and 90o)fi
1800;. Swivel Angle : 0o - (cticr stop: Left 0o,3oo,600,9oo, 120o, 150ot'
Right 0o, 3Oo, 600,90o, 12Oo,1500, 180o)
Weight : 25O Gm (aPprox.)
(without batteries)
Size : 76(W) mm x 49 (D)mm x 145 (Hl mm
The specif ications are subject to change without notice.
P.1 tView original page 13From the M. Butkus archive. Original publisher and archive notices are retained.
Check the model and edition against your equipment.
PDF verified 2026-10-10.