Excerpt: I use the flash for weddings, portraits and photojournalistic images. I also own 2 x Yongnuo Flash YN560's. I recently had a Metz mecablitz 52 AF1, but some NEW! Duracell batteries leaked and destroyed it (Do not bury Duracell, they refused to accept responsibility despite the scientific report). The Pentax AF 540 FGZ is a great flash, the controls are easy to use it is fast and accurate. However, as everyone says the battery door is hopeless.
Pros: Consistent Output, Easy To Use, Fast Recycling, Lightweight, Powerful Output, Versatile
Excerpt: My 40 year old Vivatar 285 may be on its last legs and I needed something new. This AF-540 FGZ P-TTL flash was part of a B&H package deal too good to pass up. The flash is powerful and flexible. I don't use flash very often, but when I need it, it needs to be reliable. I'm sure I will be satisfied.
Pros: Consistent Output, Durable, Easy To Use, Fast Recycling, Lightweight, Powerful Output, Versatile
Excerpt: this is a decided improvement over the af360fgz ( which isn't to bad in its own right). I suppose if I had pick one example of its ability it would be lighting hummingbirds at dusk with a series of good exposures. I tried it out on a k2000, k01, k30, q and the k3. other than dwarfing the q this flash worked well on all of the devices.
Pros: Consistent Output, Durable, Easy To Use, Fast Recycling
Excerpt: I replaced a Sigma 610 with this flash and was surprised at the lack of power. Build quality seems ok, except for the battery door which is flat out lame. The lighting was inconsistent and consequently I'm for a very long editing session from a wedding I shot last weekend. I expected better from Pentax.
Excerpt: Wireless, easy to mount, learning curve for the newbie, she will use it mostly for portraits and family photos at events. She bought a cheap one a month ago and it has been sent back. This is the real deal.
Excerpt: I've used this flash for a couple of years, and today I ordered a Canon 580exII to replace it, for one reason: The plastic hotshoe foot. I've snapped two off of this flash by knocking short light stands over (Its companion 580exII has suffered the same fate multiple times without issue due to the metal foot.) Replacing the hotshoe assembly is $, and after a couple of times it becomes not worth it.