So far so good. I use this with Lumix FZ300 and Lumix G5. It seems to work with both cameras in TTL mode and gives well exposed results with both cameras. I had a few questions about this device before purchasing it, but I only answered one of them, so I'll answer it here for the rest: As I said, the device works in TTL mode with the FZ300. The device tilts down (-7 degrees) to help with macro or close-up photography. Finally, there is NO modeling light in this unit, which again can help with macro/close-up photography. So far I've found the flash to be very good. It's compact, lightweight, only needs two AA batteries (I used rechargeable NiMH batteries), is fast, and has a flash head zoom function that makes a small, shrill noise when zooming. The noise startled me at first as it sounded almost like a warning "beep", but I quickly discovered it was coming from the zoom mechanism. Nothing to complain about, but noteworthy. If desired, the scaling function can be switched off at the push of a button. I haven't tried many other features, but the TTL mode was the main one and it seems to work. Supplied in a very nice pouch with an overlay diffuser (which fits inside the pouch). I am happy with the purchase and would buy it again.
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