Speedlite Flashes, Studio Strobes and Radio Triggers with High Speed Sync or HSS
High Speed Sync flash or HSS is your DSLR’s ability to use a flash at shutter speeds faster than the camera’s native sync. Most cameras have a native sync of 1/250th of a second or less (for example Canon 6D has 1/180 sync speed which is somewhat slow), and anything faster than that is beyond the camera’s ability to sync the shutter with the flash. But if you happen to be in a situation that requires faster shutter speeds to effectively capture the action, or for other aesthetic reasons (for example wide aperture), then you will overexpose your image. However, high-speed sync flash and camera combination allows you to use the flash at higher shutter speeds.
There are many positives to working in HSS, the first of which is being able to control the ambient light and shoot at a shallow depth of field. It is a very liberating experience to shoot HSS and not having to worry about flash sync limitations, or the time of day. I feel like most photographers don’t want to have limitations when they are spending a lot of money on cameras and lights.
Obviously you can guess that the biggest and possibly only drawback to using HSS is the power drop-off at higher shutter speeds. If you are doing senior portraits, headshots, environmental shots, weddings, or things like that outside, you may have to run your speedlights at full power a lot more often, or combine speedlights in a single modifier, but generally it isn’t that big of deal. For some shooting situations you may also still have limits to the time of day.
Most recent flash speedlites like Yongnuo YN600EX-RT II, Yongnuo YN685, Godox TT685C, Pixel X800C, Meike MK-910 and many other support High Speed Sync. You just need to select the HSS mode on the speedlite or through the camera flash menu to be able to use fast shutter speeds. Also, if you are interested in off-camera lightning you will need HSS enabled radio triggers like Yongnuo YN622C II for Canon or Yongnuo YN622N II for Nikon, or Godox X1-C, Pixel King Pro…
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Shanny SN600EX-RF
Shanny SN600EX-RF is a 2.4GHz wireless radio master and slave speedlite flash, with a high guide number of 60 (iso100, 200mm), high speed sync and full E-TTL support. SN600EX-RF is an excellent flash. The 2.4 GHz radio transmission built-in is amazing since it is very reliable and gives very accurate results. It is really well built and it is loaded with features.
Shanny SN600EX-RF features a built-in 2.4 GHz TTL transceiver, which can function both as a master and a slave to other SN600EX-RF flashes. Shanny did a great job making a flash that not only performs excellent, but is also very well built and user friendly.
Shanny SN910EX-RF
Shanny SN910EX-RF is an excellent flash. The 2.4 GHz radio transmission built-in is amazing since it is very reliable and gives very accurate results. It is really well built and it is loaded with features. The addition of built-in transceivers was something that Nikon users have been waiting for and We think Shanny made the right step of making this mainstream
Shanny SN910EX-RF features a built-in 2.4 GHz TTL transceiver, which can function both as a master and a slave to other SN910EX-RF flashes. Shanny’s so-called W-CLS, or Wireless Creative Lighting System is an aftermarket radio protocol for Nikon-compatible flashes
Shanny has managed to make a flash that not only performs excellent, but is also very user friendly
Shanny SN600C-RT
Shanny SN600C-RT is Shanny’s flagship speedlite model for Canon DSLRs, providing most features of the Canon 600EX-RT. Basically it provides all of the important features of Canon 600EX-RT flash except radio master mode.
SN600C-RT is a great E-TTL, HSS, RT enabled speedlite flash for both on and off-camera use. It is fully compatible with Canon RT wireless system and so it is a great alternative to the higher priced Canon 600EX-RT flash. For both on and off-camera use, SN600C-RT is looking to be one of the best choices among inexpensive flashes currently available.