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Cowboystudio NPT-04 4 Channel Wireless Hot Shoe Flash Receiver for Canon EOS, Nikon, Olympus and Pentax Flashes Other products
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- One (1) NPT-04 Wireless Receiver
- One (1) On/Off Switch
- One (1) LED Light to Indicate Triggering
- One (1) Standard 1/4" Screw Mount
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Cowboystudio NPT-04 4 Channel Wireless Hot Shoe Flash Receiver for Canon EOS, Nikon, Olympus & Pentax Flashes includes One (1) NPT-04 Wireless Receiver, One (1) On/Off Switch, One (1) LED Light to Indicate Triggering, One (1) Standard 1/4" Screw Mount
From the Manufacturer
This receiver is designed for photographic studio and on-location work to trigger various flash lights. The NPT-04 transmitter (sold separately) is attached on the hot shoe of the camera while the receiver is plugged into the studio flash. Each receiver works with one studio flash.Specifications
4 channels with hot shoe connector for external flashes
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
-Canon SpeedLite 580EX II, 580EX, 550EX, 540EZ, 520EZ, 430EX, 430EZ, 420EX, 420EZ, 380EX;
-Nikon SpeedLight SB-800, 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, 355AFm 344D, 333D;
-Vivitar 285HV, DF-400MZ, DF-340MZ, 2700;
-Other flash models with a trigger voltage of 12V or lower.
Top customer reviews
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I wanted to comment just to state the obvious... obvious to some, maybe not so obvious to others. But before ordering these I emailed Cowboy Studio's with a couple simple questions... then never got back to me. In fact, it was like I sent my email into space... don't expect this company to be on top of customer service via email. I suggest calling them, although, when I DID call them I got an answering machine (yes, like... and answering machine). I bought these triggers anyway... so I figured I'd answer my own questions in case others had the same questions.
Q1.) Do they work only if they can clearly see each other (ie. line of sight) or will they work if the flash is hidden somewhere, like in a softbox or just around a corner somewhere?
A1.) They indeed do NOT need to `see' each other. My first test I had the flash in my kitchen, then I walked 3 rooms away behind my fireplace. Not only was I 3 rooms away, but in between were the standard walls made of plaster as well as a brick wall from the fire place. Yup... it fired perfectly. Next, I put my flash inside one of my wife's leather pocketbook's. I figured if it would fire inside a closed leather pocketbook, it would have no trouble inside a cloth softbox. Indeed, the flash fired perfectly.
Q2.) Does it work like TTL... or... can I at least adjust the flash power from the back of the camera?
A2.) No and no. However, if you set your flash to M, you can adjust the power this way. If you set your flash to 1/2 in M mode, it'll fire at 1/2 power. If you set it to 1/4 in M mode, it'll fire at 1/4 power.... you get the point. If you have the flash on any setting other than M, it will still fire, but it'll fire at full power. So at first I had my flash setup as a slave to fire from the camera's commander mode. With these triggers on the camera, it fires the flash, but only at full power. I then set my flash to TTL mode. Again, the triggers fired the flash, but only at full power. Now, I read somewhere that these triggers only fire the flash at full power... this isn't true... you have to set the flash to Manual and adjust the flash power from the flash itself. I didn't realize this at first... and it wasn't written anywhere since these triggers come with instructions in Chinese (at least it looks like it's written in Chinese, I don't know).
Q3.) Do I have to change any settings in the camera in order for these triggers to recognize and work.
A3.) Nope. Literally, just slide the thing on your hotshoe... that's it. In fact, it doesn't matter what setting your camera is set to. Same goes with the flash.
Summary: The range CAN be obstructed and the flash will still fire. Set your flash to manual mode and adjust the flash power from the flash itself. That's it.
I also purchased a set of PIXEL KING E-TTL II Wireless Flash Trigger for CANON for use with my Canon Speedlite 430EX II Flash for Canon Digital SLR Cameras, but since the majority of the time I shoot strobist style, I just needed a manual trigger. Not being a professional, I didn't want to spend the $300 it would cost for a set of PW, so I saw the price on this Cowboy Studio set and thought that I should at least give them a try. Worst case scenario, they don't work and I send them back to Amazon. Plus I'm only out less than $30.
After receiving the set, I gave them a try without anything attached, just to see if everything appeared to trigger- and yes, both receivers worked and lit up when I pressed the transmitter. Next I did the same test, this time with the transmitter on top of my camera, and again, everything worked. Finally, I attached two YONGNUO Flash Unit Speedlite YN-560 II to the receivers, set up a simple shot, and everything again worked perfectly. I was able to achieve sync speed on my Canon with this set and the 560s, and with each shot, both flashes fired without a hitch.
Fast forward about 6 months, I now own 2 triggers and 5 receivers (I like redundancy, especially in "cheaper" pieces of equipment), and everything has worked out just fine. Occasionally I get a receiver that doesn't fire in a shot, but it's back in business the next time I press the shutter. I've never had to do the battery "hard reset" that some have mentioned. It has just simply worked. The one thing you really have to be careful of, because the power and channel selector switches are tiny and close to each other, is to make sure you don't change the wireless channel on the receiver when you power it on/off. I have done this many times, and I don't have huge fingers.
So, if I'm so glowing about the product, why the 4 star review? Mainly for 2 reasons. First, the cold shoe on the receivers is plastic. While I haven't had one break on me so far, I would be VERY wary about mounting an expensive flash on this. I would hate for a plastic cold shoe on a sub $30 product to cause your $200-$500 flash to break. Next, the batter doors are not very secure, and come loose fairly easily. I have gaffer's tape on mine. What makes this problem worse is that they slide off from the bottom, so not even gravity is helping to hold them in. I guess I see why they did this- so you could replace the batteries while a flash was mounted on them- but either way the battery door is just too loose.
Overall, it's a great product for the price. Apparently there are some copies out there that aren't as good- and for those, I'd just suggest sending them back until you get one that works correctly. A pain? Yes. Worth it for the extremely affordable price? Definitely.
Very cheaply built, as they are plastic build all around (with maybe some cheap alloy metal on the mounts). But If you aren't playing football with them, they will last a good while.
The trigger itself doesn't require battery, but the receivers require 2AAA batteries. I would recommend going for rechargeable ones, but you can do whatever you'd like.
I haven't tested out the range, but from the reviews I read before buying they can trigger a far ways away from each other, and through rooms because of the radio waves.
Includes a PC sync cord (which I haven't needed)
Very easy to set the channels of the receivers, so you can get a bunch of these and set them to up to 16 different channels (if my permutation guess is correct)
I have yet to find a con with these, but I do wish the trigger had a shoe mount on the top so I could mount my go-pro on it. I may upgrade to the slightly more expensive yongnuos in the future, but it's not a necessity. They do their job. DON'T HESITATE TO BUY THESE!
You can see below of a picture I took with this receiver and a Neewer speedlite on my a6000. only $60 of extra gear.