Cameta Digital Slave Flash + Sunpak Grip + Case + Accessory Kit for Panasonic Lumix DMC-FS20, FS3, FS5, FX35, FX500, LS75, LS80, LZ8, TZ4, TZ5, LZ10, FX150, LX3, FZ28, FX37, TZ50 Camera

As an inexpensive slave flash attached to my FZ18 this product minimally worked.

Note that the documentation states that in some cases the flash does not fire when attached to a camera (due to the sensor position). They state that you need to affix a white address label to the right side of your pop-up flash to reflect sufficient light to reach the slave's sensor and fire its flash. They even provide the product number of the Avery address label!

The grip support bracket is made of flexible plastic and tends to oscillate after you touch it---affecting camera stability.

The critical problem for me was that as an off-camera slave flash this product does not work. The sensor on the Sunpak grip is on the front of the grip. This means that the slave flash will only fire if the grip is facing you (ambient reflected light does not cause it to fire---even in a small room). Since the slave flash point of attachment to the grip does not allow rotation, off-camera use requires that the slave flash must be facing your camera in order to fire! In other words, the slave flash will usually not fire when the flash is facing your subject.

The product does not provide for connection to a tripod. However, if you find a bolt and washer, you can jerry-rig a stable attachment. Once you get the slave flash mounted on a tripod, you are again constrained to have the slave flash facing you (not your subject). And, even when the slave flash and sensor *are* facing your on-board trigger flash, the sensor only responds at a distance of about 20 feet (indoors with low natural light).

I have discovered that other slave flashes allow rotation so that the sensor can face the trigger flash but the slave flash can face your subject. I have also discovered that other slave flash sensors can be triggered at a much greater range.

I returned this product.

Buy Cameta Digital Slave Flash + Sunpak Grip + Case + Accessory Kit for Panasonic Lumix DMC-FS20, FS3, FS5, FX35, FX500, LS75, LS80, LZ8, TZ4, TZ5, LZ10, FX150, LX3, FZ28, FX37, TZ50 Camera!