Info

Godox QT400IIIM (Bowens)
The Godox QT400IIIM is a 400 Ws studio flash with a Bowens mount. It freezes movement and holds its colour, even when you change power between frames. You set everything from the LCD panel or wirelessly with a transmitter from the Godox X system, such as the X2, X3, XPro II or X3Pro.

Highlights

• Guide number 65 at full power
• Flash duration down to 1/29600 s, short enough for splashing water or drifting powder
• Up to 20 frames per second, with a recycle time of 0.01 to 0.9 seconds
• Power adjustable from 1/1 to 1/256, and to 1/32 in high-speed sync
• High-speed sync up to 1/8000 s, plus first and second curtain flash
• Built-in 2.4 GHz Godox X system, up to 50 metres from the trigger

Flash duration
The flash has two modes. In stable colour mode the flash duration sits between 1/670 and 1/6700 s and the colour barely shifts. In fast mode the flash gets shorter, and that is the mode for stopping a jump or a splash of water.

Multi flash
In multi flash mode the unit fires a burst during a single exposure, so several phases of one movement end up in the same frame. Think of a golf swing, a falling ball or a dance step. You set up to 99 flashes, at a frequency of up to 30 Hz.

Colour
In stable colour mode the colour temperature sits at 5600 K within a 200 K margin, even when you change power during the shoot. In fast mode it climbs to 9500 K, and in high-speed sync it drops to between 4600 and 5000 K. Shooting a series that has to hold together afterwards, stable colour mode is the safe choice.

Modelling light
The modelling light is a 40 W LED rather than a halogen lamp: it draws less power and lasts longer. It shows you how light and shadow fall on the subject before you shoot, which saves test frames. You can dim it to 1 percent so it stays out of your exposure.

Light shapers
The Bowens mount takes light shapers from Godox and from other brands using the same mount: snoots, pro reflectors, beauty dishes, rectangular softboxes, octaboxes and parabolic umbrellas. A glass protection cover sits over the flash tube, and a fan keeps the housing cool during long bursts.

Characteristics

• Type: Studio flash
• Power: 400 Ws
• Guide number: 65 at full power
• Flash modes: M, multi, high-speed sync
• Flash duration, stable colour: 1/670 to 1/6700 s
• Flash duration, fast mode: 1/670 to 1/29600 s
• Colour temperature, stable colour: 5600 K within a 200 K margin
• Colour temperature, fast mode: 5400 to 9500 K
• Colour temperature, high-speed sync: 4600 to 5000 K
• Recycle time: 0.01 to 0.9 s
• Power control M: 1/1 to 1/256
• Power control high-speed sync: 1/1 to 1/32
• Power control multi flash: 1/4 to 1/256
• Multi flash: up to 99 flashes, up to 30 Hz
• Sync: high-speed sync up to 1/8000 s, first curtain, second curtain
• Delayed flash: 0.01 to 30 s
• MASK function: yes
• Modelling light: LED 40 W, 1 to 100 percent
• Optical slave: S1 and S2
• Display: LCD
• Wireless system: built-in 2.4 GHz Godox X
• Groups: 16 (0 to 9 and A to F)
• Channels: 32
• Wireless ID: 01 to 99
• Range: approximately 50 m
• Cooling: fan
• Operating temperature: -10 to 50 °C
• Dimensions: 392 x 176 x 143 mm
• Weight: 2.96 kg
• Warranty: 2 years

In the box

• 1 x Godox QT400IIIM flash
• 1 x flash tube
• 1 x glass protection cover
• 1 x light cover
• 1 x power cord