Brilliant flash gun... however confusing settings and poor instructions! Also unable to find any version of the instruction manual on the internet.

I'm so glad I finally bought this product. I was hesitant because of the price which is cheaper compared to other competitors but when I had it tested I can say it's NOT " You get what you paid for!" The quality exceeds my expectations. I like the range of the flash that reached up to 180mm. Tested on a zero light dark room and turned out to be very bright. The shipping was a bonus. Arrived a day early and it was very accurate on the day and time. I was very pleased! I'm satisfied and happy on this purchased. I strongly recommend this flash. I love it. Thank you

This is a very good Speedlight for the $. It can be used as a Master or a Slave & synchronizes perfectly with my other Speedlights. You will have to use a lot of imagination to program the settings since the documentation is so poor & rates at a BIG 0 for me. Looking- up this device on YouTube or GOOGLE may help a bit. I found a few helpful little tid bits, but "don't hold your breath". I am using it in my studio as a rim light slave with & without diffusion & it does a great job. In addition, for the purpose of this review, I used it as a slave with an umbrella flash & in a 24"X24" Soft Box & got 5 star results in full Auto & Manual. Conclusion: it's a very good product for the price, but you will have difficulties with the documentation. KEEP ON SHOOTING DSLR's NOT BULLETS.

Works great in every way except it would be nice to see how much battery life I have left. Currently using it for real estate photography and it's working great. Very affordable!

Price at the time of review- $99.99I had this sent to my mother as she was (is) a professional photographer for years, doing weddings, and many other events while I was growing up.Here are numerous features on this flash that make it a successful product.It states it is for Nikon DSLR Cameras...but also worked on my mothers camera of a different brand.It can be tilted to many different angles - which is helpful depending on what you are taking pictures of.It comes with an external stand if you want to sync the flash to use as a fill in flash - adding light to a subject, or directly on the camera.There is a built-in reflector and build in wide-angle diffuser - which she stated she has not seen on others she has used in the past.There is a Synchronization jack cover.The external power jack is located on the front of the flashThis one is MUCH better compared to the name brand flash I had previously bought for my camera. There are many great features that do not usually come as a part of the flash itself (bought separate).I received this product in exchange for my honest opinion, which I have based on my mothers professional opinion, based on HER personal use and examination of the product.

First of all I have to say I loved this flash.It does exactly what it is supposed to. It has an amazing amount of light output and can be controlled easily.1. It works seamlessly well with Nikon cameras2. It allows to be the only flash (disabling the camera flash), being master or slave.3. Has a built in diffuser4. Uses 4 AA batteries that appear to last forever5. Easy to use with nice back LCD with intuitive interface and easy to press buttons.I've been using it for quite a few days and I have to say it does exactly what it is supposed to, working very well with my Nikon. Sometimes I find the light to be a bit too intense, but for the most part it does a magnificent job with the lighting.It attaches easily and can be well fastened to any camera. I love the built quality and just the right amount of weight.All in all, highly recommended.

Even at 1/4 the cost of a mid-range Canon/Nikon speedlight, the KF590N still has many of the same features excluding high speed sync and master control. On-camera modes are TTL (any Nikon DSLR), manual, and multi (strobe). Off camera it has optical slave 1 & 2, and 2.4G RC Slave (with TTL, M, Multi). On camera it is compatible with Nikon. But off camera, it can be used as a wirelessly controlled slave by a Canon 580EXII, 600EX, and ST-E2. For Nikon, it can be controlled wirelessly by a SB-900/800/700, and SU-800 Master. Wireless modes include TTL, Manual, and Multi. There are 4 channels and 3 groups.The flash works well in all my tests. It's powerful, the light is evenly distributed with very little vignetting at wide angle, and its controls are easy to use. Included is a case, foot, omnidirectional diffuser, and manual. The case is good quality, and it has a velcro belt buck strap.▐ MODES- TTL: This setting is like the camera built in flash, it will try to get a proper exposure regardless of the cameras ISO and shutter speed. Has exposure compensation of 1/3, up to -/+3 stops.- MANUAL: Adjust the power from 1/128 - 1/1 in 1 stop increments using the horizontal buttons, and 1/3 increments using the vertical buttons.- S1: Flash fires when sensing another flash. This can be either triggered with on camera flash, or another off camera flash.- S2: Flash ignores a TTL pre flash, and fires on the second main flash.- SLAVE: Allows flash to be wirelessly controlled by a MASTER. This is done by first assigning the slave flashes to a channel (1-4) and group (A, B, C).▐ PROS:- TTL- Powerful.- Max 180mm zoom range.- LCD backlight (on/off).- Easy to adjust modes/settings.- 2.4G slave, Manual/TTL/zoom (canon or nikon).- Charge beep feedback to notify that it's ready to fire (on/off).- Thick batteries like Eneloop XX and Powerex IMEDION AAs fit fine.- Nice rubber clicky buttons.- Laser AF Assist beam (on/off).▐ CONS:- Slightly bulkier than most flashes.- Only 270' head rotation instead of 360', can't point it over my left shoulder.- LCD Viewing angle makes it hard to read when high on a stand.- Cannot be controlled by camera commander mode.- No battery level indicator.- No high speed sync.- No Master unit control.▐ CONTROLSThe controls are pretty easy to use, I figured them out myself.- Power button is hold/on off, takes about 1.5 seconds. Mode button cycles through modes.- Light/FN button: 1 press for backlit, hold press to enter the function menu where things like autopower-off, exposure bracketing, AF assist beam, and recycle beep can be adjusted.- Zoom button: 1 press selects zoom, adjusts using horizontal arrows. 2 press to select channel, 3 press to select group.- Arrow buttons - vertical arrows adjust EV comp, or 1/3 increments, horizontal arrows change power in 1stop increments.- Clear button - change slave modes ETTL, ITTL, S1, S2, multi. Press both clear buttons resets flash to factory default. Clear button 2 enables front curtain sync.Mode button: Changes between TTl, manual, multi.- Middle button: OK.Settings do not loupe, meaning you cannot go from 1/1 power to 1/128 without going all the way back down through the in between levels. Not a big deal, but I prefer loupe.▐ CONCLUSIONDespite its few cons such as being slightly bulky, the LCD not being very readable when on a light stand, and not having a full 360' swivel head, this is a good flash for under 100$.4.5 stars. Sample provided for testing and unbiased review.

Even at 1/4 the cost of a mid-range Canon/Nikon speedlight, the KF590N still has many of the same features excluding high speed sync and master control. On-camera modes are TTL (any Nikon DSLR), manual, and multi (strobe). Off camera it has optical slave 1 & 2, and 2.4G RC Slave (with TTL, M, Multi). On camera it is compatible with Nikon. But off camera, it can be used as a wirelessly controlled slave by a Canon 580EXII, 600EX, and ST-E2. For Nikon, it can be controlled wirelessly by a SB-900/800/700, and SU-800 Master. Wireless modes include TTL, Manual, and Multi. There are 4 channels and 3 groups.The flash works well in all my tests. It's powerful, the light is evenly distributed with very little vignetting at wide angle, and its controls are easy to use. Included is a case, foot, omnidirectional diffuser, and manual. The case is good quality, and it has a velcro belt buck strap.▐ MODES- TTL: This setting is like the camera built in flash, it will try to get a proper exposure regardless of the cameras ISO and shutter speed. Has exposure compensation of 1/3, up to -/+3 stops.- MANUAL: Adjust the power from 1/128 - 1/1 in 1 stop increments using the horizontal buttons, and 1/3 increments using the vertical buttons.- S1: Flash fires when sensing another flash. This can be either triggered with on camera flash, or another off camera flash.- S2: Flash ignores a TTL pre flash, and fires on the second main flash.- SLAVE: Allows flash to be wirelessly controlled by a MASTER. This is done by first assigning the slave flashes to a channel (1-4) and group (A, B, C).▐ PROS- TTL- Powerful.- Max 180mm zoom range.- LCD backlight (on/off).- Easy to adjust modes/settings.- 2.4G slave, Manual/TTL/zoom (canon or nikon).- Charge beep feedback to notify that it's ready to fire (on/off).- Thick batteries like Eneloop XX and Powerex IMEDION AAs fit fine.- Nice rubber clicky buttons.- Laser AF Assist beam (on/off).▐ CONS- Slightly bulkier than most flashes.- Only 270' head rotation instead of 360', can't point it over my left shoulder.- LCD Viewing angle makes it hard to read when high on a stand.- Cannot be controlled by camera commander mode.- No battery level indicator.- No high speed sync.- No Master unit control.▐ CONTROLSThe controls are pretty easy to use, I figured them out myself.- Power button is hold/on off, takes about 1.5 seconds. Mode button cycles through modes.- Light/FN button: 1 press for backlit, hold press to enter the function menu where things like autopower-off, exposure bracketing, AF assist beam, and recycle beep can be adjusted.- Zoom button: 1 press selects zoom, adjusts using horizontal arrows. 2 press to select channel, 3 press to select group.- Arrow buttons - vertical arrows adjust EV comp, or 1/3 increments, horizontal arrows change power in 1stop increments.- Clear button - change slave modes ETTL, ITTL, S1, S2, multi. Press both clear buttons resets flash to factory default. Clear button 2 enables front curtain sync.Mode button: Changes between TTl, manual, multi.- Middle button: OK.Settings do not loupe, meaning you cannot go from 1/1 power to 1/128 without going all the way back down through the in between levels. Not a big deal, but I prefer loupe.▐ CONCLUSIONDespite its few cons such as being slightly bulky, the LCD not being very readable when on a light stand, and not having a full 360' swivel head, this is a good flash for under 100$.4.5 stars. Sample provided for testing and unbiased review.

This flash has won me over for an affordable and long lasting flash. 4 Duracell Quantum batteries lasts me the whole day with still a 1/3 of juice according to the duracell power indicator. It comes with a snug case and the buttons are easy to follow with a clicking feedback. The test flash button is actually a button unlike the competitors (Yongnuo ahem)The flash works just as nicely as my Yongnuo flash which is a pretty well known after market brand. I think K&F is up there in terms of quality and shouldn't be underestimated. Keep in mind this is a MANUAL flash meaning you must adjust the light's power in accordance to your camera settings.I'm currently shooting with a Sony A7S with the occasional photography job and this has held it's weight throughout the day. It's also been used with a Canon 60D and a 5D Mark III so compatibility isn't an issue with this flash.Overall, I think K&F made a better flash than the Yongnuo flash in terms of design but overall they're both really great flashes. I'd pick this one just because the buttons have a click response which helps a lot since you're using those buttons all the time.I received this product in exchange for my honest opinion. Hopefully this gives photographers like you some insight on what flash you should buy!Hope this was helpful. I'll update my review as I continue using this flash and report any issues as they come.

My friend introduced K&F brand to me, i tried, surprised of its workmanship and function.If you're like me, and can't afford the ridiculous price that Canon charges for their speedlights,but you're serious about photography and need a great alternate - these are for you!