11
3.2.6
Stabilisation of the colour temperature
The power packs Topas A2 and Topas A4 are equipped with a circuit providing an
approximate stabilisation of the colour temperature (CTC light). Thus, in symmetrical
operation, the colour temperature can be constantly maintained over a range of about 3
f-stops /- 150K.
4. Lamp base outlets
The two lamp base outlets (19.1 / 19.2) of the Topas A2 / A4 are marked with the
numbers 1 and 2. The four lamp base outlets (19.1 / 19.2 / 19.3 / 19.4) of the Topas A8
Evolution are defined in pairs with the numbers 1 and 2 on the two channels. Each
outlet respectively channel can be switched on individually. The digital power display
(15) shows the flash energy of the respective lamp or channel.
The broncolor lamp assortment can be applied without limitations with Topas A2 and
Topas A4. Only the lamp bases Pulso 8 can be used with Topas A8 Evolution in
symmetrical mode.
5.
Modelling light
5.1 General
The "mod" key (6) switches on the modelling lamps for all connected lamp bases. When
switched on, the green LED lights up. Lamp bases also have an additional modelling
lamp switch.
Attention:
Please note, the voltage of the modelling lamp must correspond with the
mains voltage.
5.2 Proportionality
The brightness of the modelling light can be set proportionally to the flash intensity. It is
explained in chapter 8, how to set the individual operating modes (modelling light
proportionality). To assure proportionality when operating units with different power
output ratings, the units have various proportionality levels. Proportionality is
guaranteed if the identical prop level has been set for all power packs. The higher the
digit, the brighter the modelling light.
The following operating modes are possible:
