Home/Butkus archive/Quantaray
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.

13 pagesEnglish1.1 MB PDF
Quantaray QTB-7500A AKA: Promaster manual cover
Read the manual Original PDF
Download PDF
Loading your manual…Open PDF directly

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

Search available document text

Find a term, then jump to its page in the original PDF. Image-only pages may not be searchable; check the PDF for exact wording and diagrams.

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.2
View original page 4
Page 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 5
Page 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.4
View original page 6
Page 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.5
View original page 7
Page 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.6
View original page 8
Page 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 KONG
View original page 10
Page 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 t
View original page 13

From the M. Butkus archive. Original publisher and archive notices are retained.
Check the model and edition against your equipment.

PDF verified 2026-10-10.