For a while now I have been looking for a portable flash system to work with on location that had more power than standard AA battery powered hotshoe flash units and manual wireless control with the ability to use studio flash modifiers and also to be used with any camera. After a bit of searching around, I came across this bare-bulb flash unit. It is also worth mentioning that The Godox Witstro* AD180 and the bigger AD360 both support HSS - at the time of writing this capability is only available for Nikon and Canon users.
The Godox AD180 flash head on its own isn't all that different from the Pentax equivalent: the AF540FGZ. My AF540GFZ is the older model that was made in Japan with very sturdy materials. I have to say that construction quality of the AD180 is Superb even when compared to the Nikon SB910, the AD180 has reassuring heft. The head tilt/rotate mechanism on the AD180 is very sturdy as well, and has equivalent freedom of rotation and tilt compared to the AF 540FGZ.
Combined with the PB960 Lithium Ion battery pack the AD180 is much heavier, but infinitely more versatile than any standard hotshoe flash. It is important to note that this is an IGBT** flash. Which means at lower power settings the flash pulse is significantly shorter than It is at full power.
The AD 180 produces a T=0.1 flash pulse of about 1/200th at 1/1 power, and the flash pulse profile looks a bit like this:
At 1/2 power things start to get interesting, as the flash pulse is cut short due to the IGBT shunting the power away from the bulb halfway, so the flash pulse profile looks like this:
As a consequence of this fast switching ability: as the power levels get lower the duration of the flash continues to get shorter, until you finally reach 1/128th power, the flash pulse lasts for 1/10,000th @ T=0.1. Mains powered Monobloc heads with variable power work the opposite way: at 1/1 power they are at their fastest, while at lower power settings they are at their slowest. The practical upshot of this faster switching is that it is possible to freeze motion while using wider apertures than what would be possible with studio flash units. Though there is a trade-off, the colour temperature gets higher as the flash duration get shorter, the variance is about +75 Kelvin per power level.
Canon 1DX - Sigma 180mm f/2.8 EX OS HSM APO Macro 1/250th f/11 ISO 100 - Elinchrom Speed trigger used. AD180 with 100cm Elinchrom Deep Octa used for back light with a second AD180 with an Elinchrom 16" reflector with a 30 degree grid as the key light.
These AD180/AD360 units also do not require the capacitor to be discharged when changing power settings. Only after 12 hours without use will they automatically shut down. Even if they do shut down, they remember their settings - the transmitter does as well. I can't tell you how many times I have had to send an assistant off to tend the flash units in order to keep them from shutting down and resetting.
The lower compartment of the PB960 is a Lithium Ion rechargeable 11V 4500mAh battery. These can be changed when needed by the press of a clip on the battery, which slides into the control unit. When fully charged a PB960 battery can deliver about 900 full power flashes from the AD180 (450 from the AD360). The recycle times are significantly faster than most AA powered flash, there is a cable DB 02 that plugs into both ports on the control module and this further reduces the recycle times, but only allows you to connect one flash to each PB960. With the DB-02 cable with the AD180 at 1/8th power, the flash can keep up with a 1DX firing full tilt at 14 FPS until the buffer fills.
The Battery Pack control module has a belt clip and can be comfortably attached to camera bags or your belt, It is very light, and won't encumber you. It can also be mounted on flash stands with the a Q clamp from Godox***. Disappointingly, this clamp has to be bought separately and is not included with the Flash kit. At the time of writing my two battery packs have gone through only a few recharge cycles, and have proven to hold its charge for a considerable length of time between shoots. Excellent performance.
One of the key components to the AD 180 is the FT-16 transmitter and receiver system. Why it is not included in the basic kit is beyond me. At the time of writing, the FT-16 is the only way to manually control these flash units wirelessly. It offers the ability to change flash power levels in 1/3rd stops, activate the buzzer which gives auditory confirmation that settings have been received by flash units, and control over the LED AF assist lamp.
The FT-16 uses a lower 433MHz frequency, which the better known Pocketwizard also uses. I have tested these units at distances over 80m without black frames or misfires. There has been talk of Godox producing a 2.4Ghz transmitter and receiver for these units, which is said to allow for flash grouping and TTL control and deliver superior reliability over long distances due to the higher frequency. Godox also make the Cells II transmitters, which are needed for HSS, the Cells II is unable to control the flash units the way the FT-16 transmitter can. In any case the FT-16 transmitter is at its most reliable at 1/180th sync speeds, any higher than this, and you risk limiting its range and reliability. The smaller FT-16 receiver plugs into the USB port on the flash and is powered by the battery pack, the FT16 transmitter is powered by two AA batteries - which are not included.The transmitter itself does not have a PC-sync socket which is a bit of a design blooper when one wants to use the O-GPS1 on a Pentax DSLR.
As can be seen here there a multiple triggering options for the AD180, Hotshoe,USB FT-16 receiver, 3.5mm mono plug, and PC Sync. The AD360 Has a removable hotshoe, which is able to be replaced by a plate with a 1/4th thread allowing it to be mounted directly onto flash stands or boom poles.
So what kind of photographer is this flash system aimed for? I would say macro photographers,product photography, events and portraiture**** and outdoor Sports (quantum make a special reflector for telephoto lenses). It is a versatile system that becomes especially useful for portraiture when you get one of these:
The Godox Elinchrom S-Flash bracket allows one to use bare-bulb, and standard flash units with any Elinchrom/Rotalux Light modifier. There are also brackets from Godox in Bowens Mount. The bracket is plastic, but very sturdy and the tilt motion on it is ratcheted which eliminates droop or unwanted movement when adjusting the position of heavy light modifiers.
*Also known as Bolt VB ,Cheetah light ,and Interfit strobies... they are all made by Godox anyway.
**Insulated Gate Bipolar Transistor - these excel in high energy applications where fast switching times are needed. The spell checker in Firefox keeps trying to correct this acronym to LGBT which is something else entirely...
*** Quantum,Norman and Lumedyne also make a similar clamp - however they omit the useful spigot threads which allow you to attach a flash to the clamp when you don't have a stand or need to place a flash on something else. Quantum,Norman and Lumedyne also make light modifiers that are compatible With the Godox system.
**** Though for overpowering the sun, and being able to use large light modifiers the AD360 - which is an additional stop more powerful than the AD180 would be a better choice.Or even the 600Ws Xenergizer system, though at the the Xenergiser system only supports bowens mount lightshaping accessories.
Last edited by Digitalis; 10-28-2015 at 06:53 AM.