When comparing Neewer 750II vs YONGNUO YN560 IV, the Slant community recommends YONGNUO YN560 IV for most people. In the question“What are the best camera flashes under $100?” YONGNUO YN560 IV is ranked 1st while Neewer 750II is ranked 3rd. The most important reason people chose YONGNUO YN560 IV is:
This is a powerful flash, with a guide number of 190 at ISO 100. It can illuminate the scene of your shot, even if you're taking photos in the dark and the object is further away.
Specs
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Pros
Pro Great for outdoor shooting
This flash is very powerful, as indicated by the guide number of 190 at 100 ISO. It adjusts to the ever-changing lighting conditions automatically with the TTL mode. It can be activated remotely, giving you a lot of freedom in terms of placing the light source. The wireless triggering distance up to 50 ft. is easily the double that of an average flash in this price range.
Pro Great build quality fot the money
Although this flash is priced near the bottom of the pricing range for speedlights (they can be as expensive as $500), it has an excellent build quality. It can survive being dropped to the ground without getting a scratch.
Pro Can be fired frequently
This speedlight is fast at regaining its full power, so you don't need to wait that long after taking a picture to take another. The recycle time is only 3 seconds at full charge, while many more expensive flashes take as long as 5-6.
Pro Equipped for outdoor shoots
This is a powerful flash, with a guide number of 190 at ISO 100. It can illuminate the scene of your shot, even if you're taking photos in the dark and the object is further away.
Pro It can be used to shoot fast motion and wide aperture photos
This flash can take sharp images of fast movement and pictures where the object is sharp but the background is blurred, if used in slave mode with speedlights with HSS capability, like YongNuo YN-568EX.
Pro Works with most popular cameras
This flash fits ISO standard shoe that most modern cameras have, including Canon, Nikon, Pentax, Olympus, Fujifilm, and Panasonic cameras. Although it still is a good idea to double-check if this flash is a fit for your camera in terms of voltage.
Pro Can be used in sync with compatible flashes
YN560 can be used to activate other camera flashes from up to 27 feet away thanks to the built-in wireless transmitter. It can also be used in slave mode, activated by another flash or a wireless trigger. You can create groups of connected flashes with models YN560-IV and YN560-TX and use wireless triggers: RF-603 (I/II), and RF-602.
Pro Can be fired frequently
YN560 is faster at reaching its full power after being triggered than an average flash. It's recycle time is three seconds, while many brand flashes (Canon, Nikon) take as long as six. It's even faster if you connect your flash to an external battery pack via the HV port.
Cons
Con Additional expenses are required
Neweer, unlike most speedlight manufacturers, doesn't include a case in the package, so if you want one, you will have to look for it online. The same goes for wireless triggers and receivers and an external battery pack. You will have to look for compatible third-party equipment yourself.
Con It's not suited to shoot quick motion and wide aperture photos
This flash is not well equipped for shooting fast motion. It lacks High-Speed Sync (HSS) feature that allows catching rapid movement on a photo without blur. HSS is also useful for taking wide-aperture photos, where the object is sharp and the background is blurred.
Con Only support one line of cameras
This flash works exclusively with Nikon DX DSLR cameras.
Con Not suitable for beginner photographers
To get good photos, you have to adjust the zoom and the power output of the speedlight manually to the zoom of the lens, distance to the object, the aperture width, etc.
Con Manual comes only in English and Mandarin
If you don't know the photography-related terminology in English or Mandarin, you're left on your own how to work this speedlight.