Excerpt: Overall this flash will generally meet the needs of most hobbyists photographers ( like myself). There are however several points that I'd like to share,as you want to know the good as well as the bad! After using this flash for what I don't consider a long time (20-30mins of occasional use) it gets itself out of sync with my camera, and will refuse to take a correctly exposed flash picture.
Excerpt: I bought this to use on a Panasonic Lumix DMC-G3 with Panasonic 100-300. The built-in flash is barely usable with this lens, and after searching the 'net for information I bought this flash. I am using it for closeup work with insects (using an extension tube), and so far it is ideal for this body/lens combo. Function is very simple and straightforward.
Pros: Consistent Output, Easy To Use, Fast Recycling, Lightweight
Excerpt: For my Sony RX 10 I tried the Sony HVL-F-43M and the Sony HVL20M flashes and I wasn't too impressed with them. In fact I can't see how Sony had the marbles to ask for $ for the HVL20M flash, what a laugh that was. On the other hand the Metz MZ44316S-44AF1(for Sony Cameras) now that's a different story. With my RX 10 the Metz worked great, powerful flash very easy to operate and looked good atop of my RX 10.
Pros: Consistent Output, Durable, Easy To Use, Fast Recycling, Powerful Output
Excerpt: When I visted the Samsung display at Photo Plus at the Javits Center, I told the reps that Samsung should have filled in more "basic photography" items before bringing out the Galaxy NX. One issue is a top line flash. At the very least a top of the line flash should bounce AND swivel, and the SEF-42 failed. The Metz has that, at minimum, and is far more powerful. Now Samsung needs a camera to match the flash.