Praktica BC2400 flash User manual

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PFIAKTIGA
B@A4@@
DEDICATED THYRISTOR FLASH
for PRAKTICA BC-SERIES cameras

    OWNERS MANUAL

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   7. ASA/DlN film speed chart
  8 AUTO BLUE/RED dot marks
     I  AUTO BLUE/RED coverage
       indicator
   10. Ready light
   11. Bounce angle indicator
   12. Sliding guide scale for f stops
  13 Battery door
   14. Guide scale for distances
   15. ON/OFF SWITCH
   16. AUTO check
   17. TEST button
   18. Shoe locking screw
   19. Hot shoe contact
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SPECIFICATIONS
Guide Number            24 (lSO 1OO)m; 79 (lSO 100) ft
Colour temperature          Balanced to daylight film
Power source            4 x 1.5V Alkalrne batts - AA size
Flash duration              1/ lOOOth sec. on manual
                             1/ lOOOth sec. - 1/4O0OO sec. on Auto
Recycling time             Manual mode; apx 6 sec.
                         Auto mode, apx 0.5 - 5 sec.
Number of flashes          apx 1 20 rn manual mode
                        apx 1 2O-20O0 rn auto mode
Angle of Coverage           35rnrn lens                                                                                                                                                                                                            l
Dimensions               180 x 87 x 52mm
Werght (w,/o batts.)        275 gms.

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  AUTO-COVERAGE                                 ASA   ASA   ASA                                 S ETTING                                                                                                                                       t                            Distance Covereo  RANGE                          25    100    400
                         BLUE DOT F/2 B  F/5 6   F/ 11  12 - 45m 4   1Sft    Set the aperture as
     specif red             RED DOT  F/ 1 4 F/28  F/5 6 22-9m; 75   30ft

  PRECAUTIONS





I   1. Should service or repair be necessary,         3.   For best results and longest
       please refer to a qualified service sta_            battery life, always use al -
         tion. DO NOT disassemble flashunits            kaline batteries.
       as they operate at high voltages and                                                                   4.  Remove the batteries when        present a danger of electric shock if in_                                                   the flashunit is out of use         correctly repaired.
   2. DO NOT immerse the flashunit in water          for a long period and avoid                                                             risk of  battery corrosion       or any other liquid. Likewise DO NOT                                                which may be caused by a       expose to excessively damp conditions                                                         leaking battery.      and avoid electric shock hazard.

BATTERY INSTALLATION
Slide back the Battery Compartment Cover
and insert ir:to the compartment four Alkaline
Batteries (AA) according to the polarity indicated
 in the compartment. Remove batteries from
the unit when it is not to be used tor a
 long period.                          n:n,
ATTACHMENT TO CAMERA AND SHUTTER SPEED SETTING
The flash unit has a "HOT-SHOE" contact.                                                             *Insert the mounting foot into the accessory shoe on the camera shd tighten
Lock.
A Synchro cord is supplied and this should be used for other cameras to electri-
cally connect the flash unit to the'X'contact socket of the camera.
Any shutter speed can be set on camera having interlens shutters although the
speed of 1/125tn second is recommended.
Focal-plane shutter cameras.will have an 'X' shutter speed setting at 1/6oth
usually (sometimes 1l125th sec-ond) and lfrrs sh,,,uld be set for photographing  rn
poor ltght condrtions

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     OPERATING   . I NSTRUCTIONS

        Slide tne ON/OFF sryitch                               tl5l to ,ON' position
    A humming noise wilf be heard as the unit is turned oN, which will become
        fainter when the flash unit is charged. At that time, the READY LlcHitioj      will glow and the unit is now ready for operation.
                          f f the flash unit is not   f ikefy to be used for aminute or longer, switch it OFF to
       save battery energy.   {I
     When the ffash unit is being used for the first time or after severaf weeks disuse,
                               the capacitor to become fully charged. The unit may be J    allow a few minutes for
       discharged without operating the camera by depressing the ',TEST,, button
      t17I at the shoe base.
                                                         ,,READy,,tr   IMPoRTANT: Even after turning off the frash unit the                                                                                             right
              I   may remain on because it is powered by the capacitor and not the batteries.
I$    Eventually the capacitor will bleed off and the ,,READy,, light will turn off    .


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DEDICATED FUNCTIONS
  1. The shutter speed of your Praktica BC camera is automatically set to the
        'X' setting when the BC-240O is switched on.
  2. When your BC24OO is ready for firing the flash 'READY' mark in the
      viewfinder will glow
                                                                                                                                                                I
 AUTO-CH ECK FOR AUTO.OPERATION                               IJ
.  Before taking the picture depress the 'Test'button (17!, the Auto-CHeck light (16)
   will light to indicate that the subject is within the range of auto-coverage.
   lf the Auto-Check light does not come on, the subject is out of range and
  adjustment should be made to the setting.


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