I'll start the review by noting that this is for the bundle of a Mini (for your camera) and two flexes (for external flashes). I would recommend checking the individual prices of these products first since the bundle seems to be at about the same price if the pieces were bought individually. Since the Mini is ONLY a transmitter (the Flex is a transceiver: it transmits and receives), and because it uses coin batteries and not AAs like the Flex, quit a few people prefer to have all Flexes and not buy the Mini at all. As such, you may want to buy a set of Flexes instead. My personal opinion is that I love the low profile and low weight of the Mini on my camera (though I keep leaving the thing on and draining the coin batteries, which can be annoying to replace).
Also, note that these are (as described in the title and description) for NIKON equipment only. To make the most use of them, you will need a Nikon camera body and a set of Nikon flashes.
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Overview
Right off the bat, I LOVE the design improvements over their predecessors, the PW Plus IIs. And these do appear to be much more reliable than their Canon Flex/Mini counterparts. The extra time that Pocket Wizard put into developing the Nikon version appears to have paid off. However, several beta testers I know and quite a few users have noted some limitations in these first versions. But each software upgrade (that you can download from the Pocket Wizard website) greatly fixes and enhances the units. As with the Canon versions, I expect them to get better and better over time with each upgrade.
Both the Mini (a receiver that is tiny and fits on your camera's hot shoe) and the Flex (can be both a receiver or transceiver) are flat and sleek - they do not stand up or poke out annoyingly like the Plus IIs did. Even better, by incorporating hot shoes and shoe feet directly onto the units, you no longer have to worry about cords or velcro. This is wonderful - no more cords falling out or units falling off the flash. I don't have to listen to the pocket wizard dangling off a light stand as I move it around. The flash sits directly on the Flex:
If you want to see a video of the new units and how small and easy they are, the PW people have a video on their site - check it out if you want to see these in use.
By having both a shoe and foot on each Flex or Mini, you have the option of using them with other items that also require a hot shoe - such as a Commander unit, AC3, or another flash. By using it with a Nikon Commander, AC3, or another flash, you are given the further option of being able to adjust your Flash Exposure Compensation (FEC) at the camera rather than having to walk to a flash. If I were to give my one complaint about the new PWs, it's that they don't have that ability built right in to the Flex or Mini units (which I believe the Radio Popper Jr.s do - although the Jr.s cannot do ETTL, only manual like the Plus IIs). But you do NOT need to have ANY extras to use these: the Pocket Wizards work right out of the box with only one flash on a stand. This is a huge plus over the Radio Poppers, which require the extra expense of two flashes or an commander unit before they will do ETTL.
The other huge plus about the new Pocket Wizards (and why I feel they are far superior to any other trigger on the market) is that they are a 'black box' - they have a brain that can be constantly updated. This means that new features can be downloaded for free as they become available. People are already finding new and interesting ways to use the Flex and Mini and configure them. And as new cameras are added to the Nikon lineup, you don't have to worry about them not working. It really is the reason to buy these and not any other brand, cheaper or otherwise. These are smart machines and they get smarter each and every upgrade.
The Flex and Mini also have a SUPER new feature unique to them alone - Hypersynch. Hypersynch allows you to configure the Flex or Mini to synch beyond the camera's synch speed - at speeds of 400 or faster. But this isn't just for Nikon flashes - this is ALSO for ALIEN BEES! I know a lot of people bought the Radio Poppers after it was announced that they could do ETTL with the Alien Bees - but that turned out to not be true. The Radio Poppers could synch with a random Alien Bee now and then but it turned out that very few could actually do that. In contrast, the Pocket Wizards DO provide higher speed synching - though not through the full range of shutter speeds. Another huge advantage of Hypersynch is that it does not wear down batteries like ETTL does when synching at high shutter speeds. This gives you twice or even three times the battery life of your speedlight/flash - which is important. Because of that, you can actually set your Flex and Mini to do hypersynching up to a certain shutter speed - and when that limit is reached, it will automatically use high speed synch. SMART!
Another really great feature is that my speedlight attaches directly to the Flex - which has a hotshoe on top and a screw thread in the bottom to put directly onto lightstands or tripods! It's a fabulous design!! No more cords to fall out and no more velcro on my speedlight. All I need is the Flex. It's also very flat and doesn't stick up annoyingly. No more tall Pocket Wizard Plus II banging against my flash stand or misfiring due to cords falling out. I've broken 5-6 Plus IIs in the past because they stick out so much on top of the camera and get knocked off - breaking the foot.
The Mini is very small - I can put my camera into my bag and leave the Mini on there. It's just a bit longer than a quarter and a bit fatter. But I will note that there have been MANY times I've left the Mini on without realizing it - and drained the coin battery. There have been times when I have not been able to find a store that sells the coin battery. I've ended up buying several and keeping them in my camera bag (they are certainly lighter and easier to carry than AAs. So the lightweight battery is both a plus and a minus. Now that I've drained a battery several times, I've trained myself not to do that any more. All the same, I wish the blinking light that says the Mini (and Flex too!) is still powered on.
I really like that the Flex and Mini are updatable and you can change settings with a USB cable. It means that as their software is improved, I can just update them with a quick download from the website. This is really important to me since I want them to be continually compatible as I upgrade new camera bodies in the future.
The Pocket Wizard people developed their own ETTL - they don't use Nikon's proprietary ETTL. This Control-TL, as they call it, has a nifty little extra feature - hypersynch. Hypersynch allows you to synch at speeds up to 600, depending on your camera. Hypersynch does NOT use High Speed Synching - and therefore it does not drain your batteries as fast and nastily as HSS does. You'll get 5x the amount of battery life by using hypersynch over HSS. You can configure your Flex or Mini to use hypersynch up to a certain speed and then HSS after that (e.g., hypersynch up to a shutter speed of 400 for the 5D before it tells the camera to use HSS instead).
What I really found surprising is that I liked using the ETTL and was more consistent with it on exposure than with manual. Huge surprise since I thought Manual just gave me more control for that drama. I used the ETTL as it was intended: fill light and not main light. But they can be used as a main light as well.
Issues/Problems/Rumors
So far, I am really happy with my Flex and Mini. Each upgrade fixes the more annoying bugs/dependability problems. Though these still do not have the range or dependability of the rock solid Plus IIs. One thing I do recommend is that if you don't mind the bit larger size of the Flex, it might be more useful to have two Flexes rather than a Flex and a Mini. There is only a $20 or so difference between the two and the Flex is more versatile since it is a transciever.
Choosing a Trigger - why Flex/Mini?
Do you need ETTL enough to pay the premium price of $200+ per trigger (you'll need 2 to do OCF)? It depends on how much you'll be using them. If you just want to dabble and go out and play with it now and then, then no, I don't think you need the Radio Popper or Pocket Wizards. Or, ideally, you can get two used Pocket Wizard Plus IIs for much less now that everyone is selling them off. The Plus IIs will give you full manual control and really teach you about light. If you shoot adults or teens, you'll love the ease of use and versatility of being able to use ETTL.
Also, for the price of a used Plus II, you can get the Paul C Buff triggers or the Elinchrom Skyports. Those will give you manual flash triggering but not the range of the PWs (though I doubt you're going to be using off camera flash from a distance of over 10 feet from the flash unless you do weddings).
I believe the Flex Mini is ideal for those who shoot action/events/sports and don't have time to set up the lighting on each shot. The Flex/Mini allow you to utilize the camera's own exposure and ETTL readings to give you a decent flash output the first time, every time.
Comparison of Flex and Mini to Radio Poppers:
Advantages of Pocket Wizard Flex and Mini:
- attaches securely to camera or flash - no cords, loose parts, velcro, or anything else.
- upgradable: constant updates make it better and better
- hypersynch allows you to maximize flash recycle time and batter power. You can set at what speed the PW goes from Hypersynch to High Speed Synch.
- hypersynch Alien Bees above your camera's synch speed.
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