IMPACT – Venture 600-TTL – Cordless Strobe Released



B&H Photo have released the CononMk I6T EX Leopard, TTL and HSS enabled cordless strobe, under their “Impact” house brand as the Venture 600-TTL.

The I6T EX Leopard were one of the first cordless strobes available to provide TTL metering. And the first to provide Canon, Nikon, and Sony auto sensing / switching TTL radio receiver modes.

These features are not really uncommon anymore, though the I6T EX Leopard / Venture 600-TTL still provide some unique characteristics compared to other similar options.




Firstly the Venture 600-TTL are currently one of the smallest and lightest fully cordless strobes in the 500 – 600WS class, even though they are mostly made of metal. And that’s likely because their output in practice is really more comparable in the 500WS region.

Though the strobe also provides a “Quick Mode” as default, where the output is actually limited to 1/2 of the full power available (aprox 250 – 300Ws). And in this mode recycle times are a super fast 1.2 seconds, and flash duration is also reduced slightly to a minimum 1/19,500s .

“Power Mode” provides access to the strobes full output, where recycle times increase to around 3 seconds (and minimum flash duration 1/18,500s).




The other thing that helps to reduce the size and weight of the Venture 600-TTL is that they are designed with the compact Comet accessory mount as standard.

Though a low profile Bowens S-type accessory mount adapter is also supplied for mounting the more common S-type modifiers.




The size and weight advantage of the Venture 600-TTL is likely best utilized with the lightweight Comet mount modifiers, which makes hand holding the strobe when needed (using the supplied interchangeable handle) very practical.





So although a little unusual, CononMk (the designer and manufacture the Venture 600-TTL), appear to have been aiming for a strobe that’s more manageable like a compact 300Ws strobe, (suited for wedding and event photographers etc). And at that output provides super fast recycle times, and over 400 pops per battery charge.

Though at the same time still having the ability to provide extra power occasionally when needed, and also mount larger S-type modifiers as needed.

The Venture 600-TTL’s 15 Watt LED modelling light also provides a number of modes and adjustment options, including auto power tracking.




  • 600Ws
  • Auto Switching Canon, Nikon, and Sony, TTL and HSS Compatibility.
  • Built in (Removable) 14.8V / 2000mAh Lithium-ion Battery
  • Up to 400 Full Power Pops Per Battery Charge
  • 0.2 – 1.2 Seconds Recycle Time
  • 0.3 – 3 Seconds Recycle in Power Mode
  • Flash Modes – ETTL / M / Multi
  • HSS to 1/8000th
  • Second Curtain Sync (SCS)
  • FEC / FEB – 1/3rd Increments (±3 Stops)
  • FEL (Flash Exposure Lock)
  • Manual Flash – 1/128 – 1/1 Output (1/3rd Increments)
  • Impact Venture / CononMk 2.4GHz ABC Radio System
  • Canon, Nikon, & Sony Radio Slave Modes (Auto Detect / Switching)
  • Range – to 100m
  • Groups – A / B / C
  • 9 Channels
  • Supports Mixed TTL and Remote Manual Groups
  • Transmitter USB Port
  • S1 Optic Slave Mode
  • Flash Duration Quick Mode: 1/455 – 1/19,500 (t0.5)
  • Flash Duration Power Mode:– 1/380s-1/18500s (t0.5)
  • Auto Color Temperature Correction (5500K +/-100K)
  • Backlit LCD Display
  • Recycle Tone Indicator
  • Overheat Protection
  • 15W LED Modelling Light (4 Modes, Auto & Remote Manually Adjustable 10% – 100%)
  • 6.35mm Sync Port




The 2.4GHz Impact Venture Wireless Controller is available in Canon, Nikon, and Sony versions.

And provides 3 easy to access groups, which can be mixed in TTL or Manual modes.

Remote modelling light control is also provided.

Radio range is up to 100 meters, and a mini USB port is provided for user firmware updates.




The Venture 600-TTL strobe provides auto sensing / switching Canon Nikon and Sony radio receiver modes, so its possible to use all three camera systems at the same time with the same set of strobes.






Maximum Watt/Seconds 600Ws
Recycle Time Quick Mode at Full Power: 1.2s
Power Mode at Full Power: 3.0s
Flash Duration Quick Mode: 1/455 – 1/19,500
Power Mode: 1/380 – 1/18,500
Color Temperature Quick Mode: 5500K
Power Mode: 5600K
Modeling Light 1500 lm, 5500K
Modeling Light Control Independent/Proportional/Constant/Recycle Signal
Wireless Remote 9 channels / 3 groups (A, B, C)
Operating Range: Up to 328′ (100 m)
Frequency Band 2.4 GHz
Flash Ready Indicator Audio and/or visual
Operating Voltage 14.8V lithium-ion battery
Battery Lithium-ion
500 full-power flashes
Battery Charge Time 3.5 hours
Mount Comet
Dimensions Length: 8.9″ (22.6 cm)
Diameter: 4.1″ (10.4 cm)
Weight With Battery: 4.25 lb (1.9 kg)



For and extra $250 B&H Photo also offer the Venture 600-TTL strobe in a kit, including a 32″ Comet mount hexagonal softbox (which as explained above likely takes most advantage of the strobes size and weight advantages).

And an additional battery, and transmitter unit, which otherwise cost $230 to purchase separately.








The Impact Venture 600-TTL strobes are available now from B&H Photo for $999.00.

Kit with transmitter, additional battery, and 32″ softbox are $1249.95.

Separate Venture transmitter units are $230.00.



  1. D 2 years ago

    This is a nice offering but it’s way too late to release a strobe like this now with better and future proof options such as the AD600. The AD600 has AC adapter option, along with pack/head, 1200w power option. Godox is always good with firmware updates too.

    • Earle 2 years ago

      You may be right about the timing, especially since the ConnonMk was announced at least a year before the Godox (or so it seems). But I thought I’d read somewhere that Adorama had sewed up US distribution on the Godox TTL light so this may have been B&H’s best entry into the fray.

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