CowboyStudio NPT 04 4 Channel Wireless Hot Shoe Flash Trigger Receiver for Canon EOS Nikon Olympus and Pentax Flashes Other products by cowboystudio
Includes:
1 x Transmitter (with 23A 12V battery installed)
1 x Receiver (Powered by 2 x AAA, Battery is not included)
1 x Sync Wire Cable (no need to use it for most flashes)
4 channels with hot shoe connector for external flashes
Transmitter Power: 23A 12V battery
Receiver Power: 2 AAA Battery (Not included)
Maximum Working Distance: 30m (open area, without interference)
Operates on Frequency: 433MHz
Highest responding time up to 1/320s
Triggering life: up to 20,000 times
Compatible with:
Canon SpeedLite 580EX II, 580EX, 550EX, 540EZ, 520EZ, 430EZ,
430EX, 430EX II, 420EX, 420EZ, 380EX;
Nikon SpeedLite SB900, SB-800, SB-600, SB-28, SB-27, SB-26,
SB-25, SB-24;
Olympus FL-50R, FL-50, FL-36R, FL-36;
Pentax AF-540 FGZ, AF-360 FGZ, AF-400 FT, AF-240 FT;
Sigma EF-530 DG Super, EF-500 DG Super, EF-430;
Sunpak Auto 2000DZ, 622 Pro, 433AF, 433D, 383, 355AF, 344D, 333D;
Vivitar 285HV, DF-400MZ, DF-340MZ, 2700;
Other flash models with a trigger voltage of 12V or lower
User Ratings and Reviews
5 Stars Needs Better Packaging
While I was satisfied with the product, the packaging left a lot to be desired. My NPT-04 came in a box with NO packing material, and it was quite knocked around and knocked OUT OF IT’S BLISTER PACKAGE. Fortunatly it was not damaged, but it could easily have been so, considering the CowboyStudio Strobist Swivel Flash Bracket Umbrella Holder was also knocking around in the same package. I know there is a need to economize with these ideal prices for these products, but at least some old newspaper packing would’ve sufficed.
The radio controller is pretty cool, however, and I recommend it to anyone who needs remote triggering withing limited distances. You may have complications outdoors at great distances if you don’t use fresh batteries (consider Nickel-Zinc batteries for the receiver), but indoors it totally rocks.
4 Stars High Quality for little Expense
Simply put, for the money invested you cannot buy a better set of triggers:
First, the range is better than expected; I tested them thoroughly from 1 to 100 yards without any misfires or interruptions.
Second, they fired accurately while inside a Wescott softbox, even when placed at an indirect angle such as behind a subject around a wall.
For me those two reasons alone would sway me to purchase them even if they were slightly more expensive. You may not get the same range as say Pocket Wizards, however for the aspiring amature photographer these are a great investment as you can use the money you saved buying these and put it towards other useful equipment like stands and more flashes ect…
The only thing that I find a little disconcerting is that the plastic on the hot shoe receiver is slightly raised which means that you do have to be careful when putting on and taking off flashes. I will be sure to update when I get a chance, but so far I have taken over 300+ photos with no problems.
5 Stars Works with Canon T2i.
I have to admit I wasn’t really impressed at first with the build quality and the packaging but what was I expecting for a cheap flash trigger and receiver. The great thing though is that they work just fine with my Canon T2i 550D and my 430ex II flash. I couldn’t see myself spending hundreds just yet on Pocket Wizard if I’m just learning the ropes of photography so I thought I’d give these a try and I was pleasantly surprised. If these work just as good or atleast close to being as good as the more expensive pair then I don’t see why you shouldn’t try them. There’s not instructions included but the company has online instructional videos you can check out. They’re very easy to use though. Bottom line, they’re inexpensive and they work fine.
4 Stars Works with an Opteka EF600 
Ok I was also like everyone else and had my hopes up getting these, but for the cost, why not? So I get them today, put some new batteries in, set my Opteka EF600 to manual and attempted to shoot with flash (with the flash a few feet away). I get nothing. So I start using different manual settings, and I still get nothing. I read that pretty much it’s a connect and go kind of thing, but I was clueless as to why it wasn’t working. Hitting the test button I could see that it was transmitting and receiving. I even tried looking up whether or not it worked with my flash but I couldn’t find anything online. So after some time… just as I was about to give up all hope after trying everything I could think of, I was handling my flash then pressed the test button, and it fired. I was like “what the h3ll…?” It fired with every test press, and then fired from my Canon 5D as well! I was relieved!!! So HERE WAS THE ISSUE! The transmitter fits very snugly on my shoe mount. The receiver however DOES NOT! It has the tiniest amount of play, perhaps a mm or less, but I can hear it clicking when one of the metal prongs ‘digs’ into the metal groove. So one way and NOTHING… move it the tiniest amount and VOILA’ it works! That is why I gave my review 4 stars. Plus I wanted someone else out there to know it works with the Opteka EF600!
As for initial testing, yes it worked on all the different MANUAL power settings. The furthest away so far it worked was 2 rooms. And something I haven’t read yet, it does work for consecutive rapid fire shots. I look forward to testing out the possibilities with my flash now that it has a purpose off my camera as well!
5 Stars about the battery
There has been alot of questions about the transmitter, and why it doesn’t seem to need a battery.
It does have an internal 23 Amp battery similar to alot of car/alarm remote batteries. You would have to access it through the small screw on the top of it, open the top, and you will see the battery.
The type is pretty standard, and you can order them here at Amazon, or I think they have them at Radio Shack also.
Since it is 23 “AMPS”, not “Milliamps”, it (inch for inch) has 1000 times the capacity of regular AA batteries. In other words, it will last a VERY long time. I know someone who has had one of these for 4 years and still no sign of low battery.
After that much time, (if I haven’t broken this thing – hey, I’m clumsy) I probably would have bought something else anyway.
So the last thing anyone should worry about is the battery life of the transmitter.
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Tags: 23a 12v Battery, 380ex, 540ez, 550ex, Aaa Battery, Blister Package, Canon Eos, Canon Speedlite 580ex, Canon Speedlite 580ex Ii, Fgz, Flash Bracket, Hot Shoe, Nikon Speedlite, Radio Controller, Receiver Power, Sb 27, Speedlite 580ex Ii, Umbrella Holder, Vivitar 285hv, X Receiver
Photography | admin | 
August 8, 2010 5:52 pm | 
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