Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Will this fit a Neweer TT520 Speedlite?
Document: I can confirm 2-stops improvement at 2-3 feet (flash to target) over the Speedlite set at a 105mm zoom. I expect the improvement holds over longer distances as well but have not tested this myself. Oh...be sure to zoom the Speedlite to 50mm when using a Better Beamer like it says in the directions! It works better that way.
An awesome accessory for a Speedlite. I have been using my Speedlites as key, fill and backlight strobes. I am shooting at about 1/4000 and needed to up my power by two stops. If I gang speedlights I would need 12 Speedlites! Sorry, 9 more 580 EX speedlites is out of the budget. The solution? Three Better Beamers. This works for me because I don't need to illuminate a large area.
I bought this to extend the reach of my speedlite out to 300mm. The speedlite handles up to 105mm. This is supposed to be good for 300mm. However, it's almost impossible to get the flash area to coincide with the field of view of the lens. I see a dark line where the Better Beamer light ends and where the shadow begins. when I adjust the speedlite one click, the shadow moves to the other side. I have not used it since.
It'll still work at shorter focal lengths as long as your subject is centered in the frame.It's well made, light, and easy to assemble. I did snip the little piece of velcro so it would fit without making it hard to put on my OmniBounce and/or obscuring my 580EX's serial number, but it only took a little bit.
this product does exactly what it says. Gives you a stronger beam that results in faster recycle time so you don't miss shots. I can't say enough about this product.You should note though that because this concentrates the flash it is only to be used on zoom lenses. The instructions say 300mm or higher but if you have a camera with a digital crop factor this is less important because you are croping out the edges that may not have as much light from the flash.
this is a pretty standard product, good price, works well, there's not much more to say. Its pretty much the same anywhere you get it.
if you are serious about bird photography, you cant miss this. keep a couple of them at your disposal... iit does its job so well so why not have a couple spare too. One or two extra velcras should be thrown in free cos they become shoddy with use. You can check some bird images shot with this here [...]
Wow! This is much Better.I use this on my Canon with a 400mm lens, and the flash turned down almost all the way and it's still very bright!The birds can't hide in the shadows anymore. The Better Beamer has really improved my shots in the earlymorning & evening too!Thank you! !
With this item I can utilize my 500mm lens and get excellent wing-stopping shots of hummingbirds (using 1/64 power on my flash). Light and easy to pack...a great invention.
Well, it says Canon, but I own a Nikon camera and have a Nissin flash unit that it fits nicely. Light goes &#34;Way out yonder&#34;. Really need a longer lens to get the full benefit.
Answer: Miguel, I use the Better Beamer on a canon 600. The better Beamer will fit any flash of close to the same flash head size and shape. I have never seen the flash you are asking about but I would be surprised if the flash extender would not fit. After looking more closely at your flash you should try to get the flash extender which is designed to fit a flash with the sharper corners of the neewer 520.