I/ About Phoxene and its services :
* What is the link between Lumix and Phoxene?
* Does Phoxene produce flashlamps ?
Phoxene does the research and development of the different flash tubes and determines all the features best suited for each one. All are produced by several companies who have the know-how and technology for these high precision tubes. Once these flash tubes are on Phoxene’s premises, they are fitted with their ceramic base, contact plugs, or copper wires according to needs.
Each flashtube is individually tested before leaving Phoxene’s premises.
* How can I pay for my order ?
For export, Phoxene takes payments by bank transfer. For orders under 500 euros you may pay by Paypal (but please mention it at the point of order).
II/ About Phoxene ‘s products :
*What is a compatible flashtube ?
A compatible flash tube is a flashtube which has been designed to match the features of the original one – That means that these flash tubes can be used on the original equipment, and will have a similar behaviour as the original flashtube.
* Do my flash-sets run a risk with Lumix flashlamps?
Lumix flashlamps are designed to match the electric behaviour of original flashlamps. Their effect on your lighting gear is very similar to that of original parts.
* Flashtube or flashlamp ?
For us, the flashtube and flashlamp are similar, we can use these two words indifferently. It seems that the word flashtube (or flash tube) is more used by producers of studio light gear. In fact it would be more acurate to say that the flash tube is the part in glass, and the flash lamp is the item including the glass part, the connector, the legs, the ceramic base …
* Most Lumix flashtubes with plugs have their plugs soldered instead of crimped. Why is that?
Soldering a plug to a flashtube’s leg implies a large contact surface between the plug and the leg, thus dramatically reducing the Joule Effect and potential burn to the plug each time a flash is triggered.
Another advantage of soldering versus crimping is the lower mechanical stress put on the flashtube during the operation, better preserving the flashtube. However, some of Lumix’s flashtubes have crimped plugs. Please note that, still aiming at a large contact surface, this crimping is square-patterned and applied on soft copper legs, while many manufacturers generally use simple 2 point crimping on stiff nickel wire.
* What is the black glittering deposit near the electrodes of my new flashtube?
This black or silver deposit is called a “getter”. This is a material that neutralizes impurities in a new flashtube. This black/silver deposit turns to white and almost disappears after a new flash tube has been used.
From the user’s point of view, the presence of the ‘getter’ on a new tube is the sign that the tube is airtight. Please note that some flash tubes do not have these black/silver ‘getters’. They are manufactured according to a different technology.
* Does a frosted glass dome reduce the light emitted by a flashtube?
A frosted glass dome does not significantly reduce the amount of light emitted , but spreads it into a smoother beam. The loss of light caused by a dome is often regarded as negligible (around 10%, i.e. 0.2 f-stop).
* What shall I do to safely restart a generator after a long period of rest?
Flash capacitors contain chemicals and are rather temperamental components. Rest periods of several months should be avoided. When restarting a flash-set, it is better to regenerate the capacitors gently. That is, set the generator on the lowest energy level, and progressively increase the energy (over 1 or 2 hours, not faster!).
After a long period of rest or after a lamphead connecting change, it is recommended to produce the first flashes at low energy for the following reasons:
– if a severe defect should occur, it is less violent at low level: plug explosion, capacitor burst, short-circuit…
– If a flashlamp shows difficulties in triggering, this fault will appear better at low energy. If such a defect is detected when turning the set on, the operator will avoid mysteriously losing a series of photographic shots…
* Are there precautions to be taken with new capacitors?
With new capacitors, the rule should be the same as when “Restarting a flash-set after a long rest period”: the capacitors need to be regenerated before hard use.
Each flash capacitor supplied by Phoxene for servicing is separately tested at its rated voltage before delivery.