Siros L

Battery-Powered Studio Quality

Frequently Asked Questions

About Siros L

What is the difference between a monolight and a power pack?

A monolight combines power supply and lamp unit in one housing. There is no need for a lamp cable, making the device very handy and convenient. A battery-powered monolight allows you to work completely wireless. In order to keep size and weight to a minimum, monolights are limited when it comes to flash power. Each monolight features its own controls and works independently of other monolights. The whole system is not down in case of a technical issue.

A power pack usually stands on the ground, therefore size and weight are not as critical as compared to monolights. Therefore, they offer substantially more flash power. Several lamp heads are connected to and controlled by one power pack. In case of a failure the whole system may be temporarily down. The (separate) lamp heads are much smaller and lighter than monolights.

How many flashes per battery can be achieved?

440 flashes (Siros 400 L) respectively 220 flashes (Siros 800 L)

Does Siros L feature the broncolor HS function?

Yes, both Siros 400 L and Siros 800 L support this function (flash power level 4 to 10 only).

Please note: Among the mains powered devices (Siros S), only the 800 S does offer the HS function.

Which radio remote controls can broncolor Siros L monolights be controlled with?

- broncolor RFS 2.1 system:

  • RFS 2.1 Transceiver (Transmitter kit) | item number 36.133.00

- broncolor RFS 2.2 system:

  • RFS 2.2 C Transmitter (Canon) | item number 36.160.00
  • RFS 2.2 F Transmitter (Fujifilm) | item number 36.163.00
  • RFS 2.2 N Transmitter (Nikon) | item number 36.161.00
  • RFS 2.2 S Transmitter (Sony) | item number 36.162.00

What type of battery does broncolor Siros L come with?

It comes with a 28.8 V / 2.5 Ah / 72 Wh Li-Ion battery with integrated battery status (item number: 36.155.00).

Is colour consistency maintained when using HS?

Activating the broncolor HS function has a small influence on colour temperature.
However, other light sources such as daylight or ambient light usually have a stronger impact on colour temperature.
Hence, the broncolor HS function’s influence on colour temperature is alleviated in sunny conditions.
HS is meant to be used in a bright outdoor environment.

How to read the battery indicator?

The battery indicator can have several states during operation, charging, or if an error occurs. It can typically be green or red, and have the possibility to blink. Each combination has a specific meaning.

To understand it fully, please read the following document: Siros L - battery indicator

How does HS compare to short flash duration?

Without HS, the minimal flash duration cannot be shorter than the fastest shutter speed of the camera (X-sync).
The broncolor HS function provides a way to circumvent the restriction imposed by the X-Sync time:
1) The flash fires before even one pixel of the image sensor has been uncovered
2) The first shutter curtain starts to open
3) The second shutter curtain starts to close (think of it as a scanning procedure)
4) The flash continues to burn (like a continuous light) and only stops when the scanning procedure is complete. For this reason we need the longest possible flash duration. The result is a great feature; now you can use a large aperture to provide an out-of-focus background, or simply freeze super-fast motions.

Is the full power range of the flash available in HS, or am I limited to certain power levels when using HS?

While working in HS mode you are only able to use flash power level 4 to 10 with Siros L.
While working in HS mode you are only able to use flash power level 6 to 10 with Move 1200L.

Will using HS impact the battery life (does it use more power?)

In general – under the same lighting conditions (i.e. ambient light) – the broncolor HS function does not impact battery life.

If I have a camera not supported by HS (Fuji, Leica, Phase One / Mamiya) is there any risk of damage to the camera using an RFS2.2 transmitter, should I use an RFS2.1 transmitter?

RFS 2.2 is available in three versions, for Canon, Nikon and Sony, always optimized for its operation.
The use with other camera systems is not recommended.
The RFS 2.1 transmitter is a more universal device, hence able to work with many camera makes other than Canon, Nikon or Sony.
Please note that with the RFS 2.1 the broncolor HS function is not supported.

What about brightness gradation when using the broncolor HS function?

Under studio (“interior”) conditions, a certain degree of brightness gradation (from top to bottom) may occur. This effect varies depending on the camera model.
Outdoors in bright sunlight – the ideal environment for the broncolor HS function – the mentioned brightness gradation is neglectable.

What kind of modelling light does the Siros L have?

25 W LED, 3000 K

What do I need to know about storage and charging of lithium ion batteries?

AFTER RECEIPT, IT IS ESSENTIAL THAT YOU FULLY CHARGE THE LITHIUM-ION BATTERIES IMMEDIATELY AND STORE THEM IN THIS WAY.

They must be recharged after a maximum of 5 months. If the batteries are not charged, they can fall into a deep discharge state and then usually cannot be recharged, i.e. they are defective and can no longer be repaired. In such cases, no guarantee or goodwill can be given.

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Looking for more details?

SIROS L

Broncolor Siros 400 L from front 31 710 XX

The Siros L is broncolor’s battery-powered monolight, which provides ambitious professional photographers with the opportunity to enjoy the perfect lighting, be this in a mobile form in the studio, or for external shots – offering up to 440 flashes at full power per battery charge, colour constancy and very fast flash durations. Easy to control with the bronControl app. Available in 400 and 800 joules.

All Siros L units with the latest software update are “HS” compatible. “HS” lets you use flash in combination with shortest shutter speed settings on your camera. For example, with ambient light, even with the aperture wide open (selective focus), the image can be underexposed correctly with up to 1/8000 s and Siros L still lets you set dominant and creative light effects.

All you need for this is the RFS 2.2 trigger, which is available for Nikon, Canon, Fuji and Sony cameras.

Need help? - Go to our online knowledge base

Siros L
Key Features

  • Abundant power

    Up to 800 joules and carefully calculated reflectors never leave you in the dark. Siros L illuminates even your largest sets or dominates the sun. High-speed synchronisation ("HS") is integrated as well.

    Power new
  • Battery endurance

    A single charge of the compact and lightweight battery stores power for up to 440 flashes. Full power flashes!

    Siros L Battery
  • Impressive speed

    In only 0.03 s, the Siros L can be ready for the next flash. The flash duration can be as short as 1/9000 s (t 0.1) - shorter than the fastest shutter speed of your camera!

    Speed
  • LED modelling light

    The LED modelling light consumes 25 W only but it is bright enough to build your set and focus properly. The colour temperature of 3000 K matches perfectly with the modelling light of Siros S.

    Siros L LED Modeling light
  • Easy to use

    Very simple operation using the single rotary controller. Alternatively, Siros L can be controlled via the advanced, intuitive bronControl app.

    Easy to use

Inspired by Siros L

The Siros L is the perfect partner

Broncolor Siros L Bron Malamut 01
Sandro Baebler - portrait, advertising and editorial photographer

For the editorial shoot with the malamutes in the snow, I found the Siros L to be the perfect partner because, during this day in the mountains, we not only had to work quickly and flexibly, but also needed to be able to move around in the snow.

We were absolutely delighted at the battery-life, the batteries kept going throughout the day and in this cold, too – we were, after all, at an altitude of 2300 metres. The weather co-operated perfectly and the sun shone the whole day. Ideal conditions to use the sun as the main light.


Siros L

Battery Powered Studio Quality

Siros 400 L WiFi | RFS 2 Siros 800 L WiFi | RFS 2

31.720.XX

Manufacturer’s Suggested Retail Price | excl. VAT

2,717.00 EUR

  • Flash energy: 800 J
  • f-stop at 2 m (6 1/2 ft) distance, 100 ISO:
    • with L40 reflector: 32 8/10
    • with P70 reflector: 45 6/10
  • broncolor "HS" function
  • Flash duration: t 0.1 (t 0.5):
    • min. energy: 1/8700 s (1/18000 s)
    • max. energy: 1/250 s (1/700 s)
  • Charging time (at 28.8 V):
    • eco mode: 0.05 – 4.3 s
    • normal: 0.03 – 2.7 s
  • Control range of flash energy:
    • over 9 f-stops in 1/10 or full f-stop steps
    • 4 – 800 J
  • Sequences up to 50 flashes
  • Modelling light: 25 W LED, 3000 K

includes:
1 Siros 800 L WiFi / RFS 2 (incl. umbrella reflector)
1 Lithium-Ion battery
1 battery charger (incl. mains cable country-specific)
1 Flash Bag 1.1
1 USB cable
1 operating instructions
1 safety instructions

What’s in the box

Lithium-ion battery for Siros L: Lithium-ion battery for Siros L

Lithium-ion battery for Siros L

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Battery charger for Siros L: Battery charger for Siros L

Battery charger for Siros L

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Flash Bag 1.1: Flash Bag 1.1

Flash Bag 1.1

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Siros L Kits

To make an entry into the world of broncolor Siros L easier, we have, besides the standalone units, put together one kit, which contains everything needed for a particular assignment.
Broncolor Siros 400 L Outdoor Kit 2 31 750 XX
Siros 400 L Outdoor Kit 2 WiFi / RFS 2 | 31.750.XX
Broncolor Siros 800 L Outdoor Kit 2 31 751 XX
Siros 800 L Outdoor Kit 2 WiFi / RFS 2 | 31.751.XX