The SN600C-RT are around 0.2 to 0.3 stops less powerful than the earlier Canon version SN600SC though (which basically equal the Canon 600EX-RT).
The SN600C-RT are currently compatible as wireless RT radio slave flashes to the Canon ST-E3-RT transmitter unit, Canon 600EX-RT flash, and Shanny’s own SN-E3-RT transmitter unit.
The Shanny SN600C-RT do not provide an RT Master function though, as that will be included in the SN600EX-RT model to be available later in the year.
The SN600C-RT also do not include Canon or Nikon Optic Wireless Master or Slave flash functions. They do include the basic S1 and S2 optic slave modes though.
As an on-camera flash alone, the SN600C-RT provide full function with ETTL, HSS, and control of the on-camera flash through the camera menu.
- Full Power – GN 60m (ISO 100 / 200mm)
- HSS to 1/8000th
- Flash Mode – ETTL /M / Multi
- 1st Curtain Sync / 2nd Curtain Sync
- FEC / FEB – 1/3rd Increments (±3 stops)
- Manual Flash – 1/128 – 1/1 output control (1/3rd increments)
- 20-200mm Auto and Manual Flash Zoom
- Built -in Radio Slave Mode Compatible With 2.4GHz Canon RT Wireless System
- S1 & S2 Basic Optic Slave Modes
- Full Power Recycle – From 1.8 Seconds
- Supports Multiple Flash Groups A/B/C/D/E
- Custom Functions
- Sound Prompt
- Heat Protection
- LCD Back Light Can be Kept On
- Crop Sensor Auto Zoom Option
- AF Assist Light
- Full 360 Degree Swivel and Tilt Head (With Tilt Lock Button)
- Large Clear Dot Matrix LCD Screen
- Canon Like Interface
- Fast Clamping Metal Foot with Locking Pin (Clamps Well)
- Good Build Quality
- External HV Battery Port
- USB Port for Firmware Updates
- PC Sync Port
- No Canon RT Master Function
- No Canon or Nikon Optic Wireless Master or Slave Modes
- AF Assist Light is Good, Though Not Great
- Not Compatible with YongNuo RT Flashes or Transmitter Units
SN600C-RT PERFORMANCE OVERVIEW
The Shanny SN600C-RT have just been re-released, as the first production units originally made available a few months ago had shown some issues with wireless radio range and consistency.
Fortunately Shanny appear to have been able to make some major improvements, and from testing so far the SN600C-RT appear to be providing as good range as the Canon 600EX-RT, with very good consistency (possibly firing more consistently than the Canon units).
Another complaint of the first release SN600C-RT was an overexposure at minimum ETTL power output when using HSS.
I’m not sure if this has changed that much, though I’m not really sure if it can be considered a fault of the flash either. As the Shanny flashes simply produce more light in HSS mode than the Canon 600EX-RT.
In ETTL, and using HSS mode, the SN600C-RT can not produce less light than the minimum 1/128th manual power level setting though, where the Canon flashes can go slightly lower.
If minimum HSS output is too much though, a Stofen style cap, or the flashes flip down wide angle diffuser etc, can be used to help reduce the light output.
Otherwise the SN600C-RT’s ETTL exposures and Flash Exposure Compensation all appear to work fine, as the earlier SN600SC etc have already done as well.
Shanny’s SN-E3-RT transmitter unit has also been re-released. Though unfortunately results here are more disappointing.
UPDATE – And as late as September 2015 Shanny had still had no plans for rectifying these considerable issues with the SN-E3-RT transmitter in the near future.
Shanny may have improved stability further, though the range and consistency of the first release SN-E3-RT already appeared to be very good anyway.
The SN-E3-RT’s AF assist light has also now improved. And although they are still not as bright as the flash units provide, though they do appear to work reasonably well now.
The largest issue though has been the SN-E3-RT’s sticky main control dial. And unfortunately at the time of writing this that has not improved. If anything the dial appears to be even slightly stiffer than before.
And changes on the SN-E3-RT’s LCD still do not always correspond with movements of the dial as they should.
Combined with a transmitter which rocks around considerably in the cameras hotshoe, this makes anything but very slow and precise adjustment of the main dial pretty difficult at times.
And a filter film which Shanny had intended to implement over the SN-E3-RT’s color LCD display to make them more visible in bright sunlight does not appear to have eventuated either.
The SN-E3-RT’s test fire button still does not function, and there is still no recycle ready indication from the slave flashes.
The SN-E3-RT are functional (provided you’re not in any hurry to make adjustments) and appear reliable, though they are currently certainly not up to the standard they should be, or of the (lower priced) YongNuo and original Canon alternatives.
So at the time of writing this, the Shanny SN600C-RT flashes are likely best used as a good economical extension to the Canon ST-E3-RT, and 600EX-RT system and master units.
At $110 the Shanny SN-E3-RT transmitters are relatively inexpensive though, and their range and reliability are very good. Just be aware the interface is currently not always easy (or enjoyable) to adjust.
That is really a shame at this point, as Shanny had started so well with the SN-E3-RT. Hopefully they will still refine these further over time yet though.
The SN600C-RT like all current Shanny flash models use the Canon 600EX-RT style interface.
The Shanny LCD displays are not very high resolution compared to most other dot matrix displays. Though if anything this has turned out to be an advantage, with the characters easy to read from a distance.
A slightly sticky main control dial has been an on running issue with Shanny flashes, though nothing as serious as the SN-E3-RT transmitter units mentioned above currently suffer from. The dials could certainly improve still, though they generally do work ok as they are.
In RT slave mode most of the adjustment are made on the transmitter units anyway.
USB PORT / FIRMWARE UPDATES
Importantly the SN600C-RT do also now include a micro USB port in the flashes battery compartment for firmware updates.
(SN600C-RF flash model shown below)