Price: $9.99
(as of May 22, 2025 23:54:37 UTC – Details)
The JJC optical flash slave trigger is designed for lag-free firing of a second flash unit. For shoe-mount flash units – no cord required. Range: 20m (66ft) depending on the flash factor of the flash unit in use and the brightness of the surroundings.
Compatibility
The hot shoe sync adapter is fit for all flashes with standard ISO 518 hot shoe excepts Canon.
Specification
Material: ABS Plastic + Metal
Weight: 0.07 lb
Packaging Type: Paperboard + plastic
Range: 20m (66 ft)
Note
1. This hot shoe mount adapter does not support TTL flash operation
2. Wireless and no battery needed
Package Including
1. Optical Flash Slave Trigger x1
Warranty
1-year 100% Satisfaction Guarantee
The flash standard hot shoe on the top is perfectly fit for off-camera flash, microphone, studio light other equipment or devices with standard ISO 518 hot shoe excepts Canon
Optical Sensor: Optical flash slave trigger for lag-free firing of a second flash unit. For shoe-mount flash units-no cord required
The PC female outlet on the side, enabling you to trigger flash mounted onto the upper hot shoe and additional flash or studio light (A sync cable is excluded)
The standard cold shoe on the bottom is compatible with DSLR, mirrorless digital camera, camcorder and other cameras with standard hot shoe
The 1/4″-20 Tripod Socket can be mounted onto a tripod with a 1/4″-20 male screw. And the lock nut helps you mount the devices tightly
product.”>Details)
Customers say
Customers find the flash trigger inexpensive and simple to use. However, the functionality receives mixed feedback – while it works well at 6ft range, some report it won’t work with specific flash units. Moreover, the build quality is negative, with customers describing it as unreliable. Additionally, the flash trigger aspect also gets mixed reviews, with some customers reporting it triggers the flash but out of sync.
AI-generated from the text of customer reviews
A. Stern –
Well-made device a great 3-in-1 gadget for flash
The JJC Optical Flash Slave Trigger (JSYK-3B) is well-built and works great with my old Minolta Auto Electroflash 360PX from my film days. I avoided using that flash after switching to Nikon digital SLRs because I didn’t want to risk a direct connection and possible excessive voltage. However, I learned that you can still use older flashes in manual mode with the JSYK-3B — there is no direct wiring to the camera — as a secondary flash where you have a main flash (or multiple flashes) controlled by the camera. The light from the main flash(es) is seen by the JSYK-3B and it fires the flash attached to it; this happens simultaneously because the light reaches the sensor effectively as fast as if the unit had been wired electronically.Bear in mind that this is old tech (optical slave trigger technology has been around for a very long time), but it still works well. The key thing to remember is that many modern digital cameras have sophisticated flash systems that emit “pre-flashes” first that can trigger an optical slave right away, before the “real” flash and shutter exposure happen. You need to set your camera so that it does not emit extra flashes so the slave is not triggered prematurely. Usually there is a flash setting for “manual” (you control the intensity of the main flash manually) or “auto” (the main flash uses its own sensor to control the strength of its light burst), either of which will eliminate pre-flashes. Also, don’t use the camera’s “red-eye” control either, because it is usually based on emitting pre-flashes.The JSYK-3B sensor is sensitive and is inside a curved lens that allows it to “see” flashes that are even a bit outside a direct line of sight. I have not tested how well it works in direct sunlight (which might drown out a weaker primary flash), but indoors it is sensitive enough to be triggered by my Nikon’s built-in pop-up flash set at its weakest (1/128th) power. The package claimed it could be triggered by a main flash 66ft away depending on the power of the main flash. At 1/128th, my pop-up triggered at 15ft.This device is a better deal than others I found while shopping because it actually gives you three functions in one: (1) optical slave flash trigger as described above; (2) the bottom has a metal 1/4″ female mount plus cold shoe, and the top has a hot shoe, so it gives you a way to attach any flash to any tripod or light stand that has either a standard 1/4″ male screw attachment or a cold shoe mount; and (3) there is a standard female PC terminal on one side that is triggered whenever the optical sensor triggers the hot shoe, which means that the JSYK-3B can trigger a second flash via the PC terminal simultaneously with the flash mounted atop the hot shoe (or even just one flash attached by PC cord alone). The PC terminal on mine worked flawlessly; I simultaneously fired a Minolta 360PX in the hot shoe and a Nikon SB-800 connected via PC cord, using my camera’s built-in flash as the trigger. (See photo.)In short, if you are comfortable with using flashes in manual mode and not relying completely on your camera’s TTL flash control, this little device gives you a very inexpensive route to exploring wireless multiple-flash setups, and lets you revive older flashes that you might have stored away.
Amazon Customer –
Simple toi use
I have a very complex Nikon flash. It’s hard to get pure manual operation on it. This cuts off all the over-rides in the system and allows me to adjust the exposure to my liking. That without the auto overriding my choices. Inexpensive and works well.
C. DIPAOLO –
It works very well
I like that these little flash slavers work well and they are not at all expensive.Although I usually have my main strobes fired by radio transmitters I sometimes use smaller speed lights when needed and simply plugging in one of these inexpensive light slaves makes things convenient and simple. When ever I read reviews there are always people who post negative reviews and this item was not immune to some of those reviews. But I can say for me this item never fails to work every time. I have more than one and always keep them handy when shooting.
WC –
Did not work for me
Pretty sure I didnât do anything wrong, as these things are pretty simple, but this did not work for me, not even once. Returned.
JOHN D WARWICK –
Sensitive shell for flash
I love the center. It worked out really good for me for my strokes thank you.
Ken The Man –
Satisfied! Does What its intended to!
Bought this to see if I could trigger an ancient ; i mean, vintage Nikon SB-20 flashIT WORKS. Its Plug and play, so simple , no set up , nothing to understand;Just that when it sees a flash it immediately sets off whatever flash you have on top!Great little gadget for the small price to bring your super old flash to modern times .Using mine as a Hair light / backdrop flash .
Amazon Customer –
Good!
Good!
R. Onekea –
Works great at range of 6ft or less
Product came quickly but failed to fire half the time. Works with range of 6ft but any further and it did not fire.
Haney Francis –
This product saved me buying a new flash. I use an old Nikon sb24 as a second flash with this optical slave for portrait work indoors and out
Joe Hernandez –
Works as intended.Will trigger my off brand wireless triggers and flash.Happy there was a solution to my problem.Wish it was slightly cheaper so I could buy more incase I lose it
Ralf Roletschek –
Funktioniert anstandslos , nichts dran auszusetzen.
amazon –
works ok
Axel –
Funktioniert wie es soll.