Allacax Next II review: a flash trigger for your Sony NEX

Kerry Garrison evaluates the Allacax Next II and Smor: a radio trigger and hotshoe adapter for Sony NEX mirrorless cameras.

Allacax Next II with Sony NEX-5N

Why Sony didn’t provide a real hot shoe on most of the NEX cameras may forever remain a mystery. Some attempts to create hot shoes and wireless flash triggers have been downright failures (one such unit completely fried my NEX 5n and the manufacturer of the device ended up replacing my camera). With that little piece of history, it was with more than a little hesitation that I decided to try out the Allacax Next II system.

Allacax Next II with Sony NEX-5N

Starting off with the basics, the Allacax Next II is your basic wireless trigger system designed for manual control of the camera and flash unit. The system comes with the transmitter, which is powered by the camera, and a single receiver powered by two AAA batteries.

  • 2.4 GHz Wireless Technology
  • 16 encrypted channels to select from
  • Up to 1/320 second sync speed*
  • Batteries are not required for transmitter- transmitter runs off of camera power.
  • Built-in wake-up function for your flash
  • Up to 300 feet working distance
  • Power switch
  • Auto camera LCD screen LIGHT UP/NO LIGHT UP switch
  • Locking wheel and position pole
  • PC Sync port


  • Frequency: 2.4 GHz
  • Distance: Up to 300 Feet
  • Channels: 16 Encrypted Channels
  • Max sync speed: 1/320 sec.
  • Batteries: Transmitter Is Powered By Camera, Receiver Needs 2x AAA Batteries
  • Signal Output: PC Sync Port (Transmitter), Hot Shoe, 2.5mm Mono/Stereo Sockets (Receiver)
  • Receiver Mount: Cold Shoe, ¼” Tripod Lug
  • Transmitter Dimensions: 32mm (L) x 28mm (W) x 23mm(H)
  • Receiver Dimensions: 82mm(L) x 38mm(W) x 32mm(H)
  • Antenna: Built-in PCB Antenna
  • Suitable for: Selected Sony NEX-Series Cameras. These include NEX-F3, NEX-5N, NEX-C3, NEX-5 and NEX-3


The specs certainly look good enough but the question is: “Does it live up to its specs?” First impressions were pretty good, the system just worked as described. The flash unit used was a Yongnuo YN-560 and it fired every time. After letting the camera sit for a few minutes while arranging a scene, the system did not work again. Power cycling the NEX 5n fixed the problem and we were able to continue shooting.

The specs state a distance of 300’ but I ran out of space at 180’ and it was still working just fine. They also claim a max sync speed of 1/320 second but on the NEX 5n the camera would not let me dial in anything past 1/160 second. I’m not surprised as this is what I have got locked down to with other systems.

Along with the Next II, I also got a chance to use the Allacax Smor hotshoe adapter. Again using the NEX 5n and a Yongnuo YN-560, I initially got the max of 1/160 second. On the side of the adapter is a small “NO LIGHT UP” switch. Flipping this switch removed any shutter speed restriction. However, I was only able to shoot at 1/250 second or slower. At faster shutter speeds banding appeared on the top of the image.


Allacax Next II system performed quite nicely and I have been using it for a few weeks just to make sure my first good impressions would hold up with additional use.

You aren’t likely to find the Allacax products anywhere outside of Amazon or eBay, where I found the Next II system selling for $44.99 and the Smor hotshoe for $16.79.

Based in California, Kerry Garrison is a professional wedding photographer and creator of the Camera Dojo photography site. View more of his work at