TWO FLASHES AT ONCE | MODEL CONSTRUCTION

For portrait and other special types of shots using the flash it is often necessary to illuminate objects from different angles, but Standard… “blitz” the desired effect, alas, does not.

We offer homemade device allows you to turn on sync one camera not one, but two flashes (ФВ1, ФВ2), and this is achieved by operating lighting captured on film objects.

Unlike the previous shots, where the lighting lamp is a bright light source is supplied from the pulse transformer, the primary winding is discharged (via synchrocheck SK camera) bolsheselsky capacitor here to work additionally already attracted a pair of thyristors.

Part of the discharge current of the capacitors flashes through the isolation diodes VD1 and VD2, closed synchrocheck SK and limiting resistors R1 and R2 is supplied to the control electrodes of the thyristors VS1 and VS2. The button SB1 is used to reset the charge if the shooting object is not held.

A circuit diagram of the device is so simple that you can assemble it quite quickly even by a beginner in electricity and radio. Moreover, the electronic components required for this a bit, and they are all cheap and affordable. Mounting — hinged, which is familiar from school physics lessons. And as the hull is plastic box size 50x40x30 mm.

The electrical circuit of the device to enable the two

A circuit diagram of a device to enable the two “game” from microcontact one camera

After the first operation with the subsequent ignition of the regular display on the light device is ready to use for the scene.

O. SYDOROVYCH, Lviv

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