Voeloon 810-RT TTL Transceiver Review

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The short version:
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Voeloon 810-RT for Nikon. Tested with D4, D810, SB600, SB800, AD360
Price TBD but supposed to be "very very low."

The Good:
A massive feature set-
*AF assist built in
*TTL and TTL passthru; if there is a function that works with the speedlight attached to the camera, it will work when attached to these in TTL mode. Things like curtain sync and FV lock.
*True TTL "Flash Pulse" High Speed Sync (HSS) up to 1/8000
*DT mode; Tail Sync with adjustable sync timing for high shutter speeds w/ manual lights.
*Manual mode with remote power/zoom control
*Manual triggering by PC cable connection... Tail sync (DT mode) and RPT works here as well.
*Long transmitter range at 2.4GHz RF; as much as 250 meters
*High X-sync speeds; it even worked at 1/320 on the D810. This is a pretty big plus as many transmitters/recievers have a communication delay that results in an effective 1/160 X-sync limit
*31 channels (1 auto), 3 groups, with independent control to include zoom head position. I found no cross-talk issues while running three groups simultaneously.
*Backlit LCD and button text
*Wireless shutter release (with optional cable)
*USB undateable

Everything I tested worked as it should.

Overall better than average build quality internally and externally, like a metal spring-loaded battery door hinge, more than adequate wire gauge/terminals, solid foot mounting, etc. (yes, I opened one)

View attachment 28662
A very simple and intuitive user interface. Six buttons that do pretty much exactly what you think they will do.
And an LED Status light that glows red when in slave mode and orange when communicating.

The Bad:
*A fairly useless and incomplete user manual.
I had one speedlight out of four that had too much play when mounted resulting in intermittent failed/mis communication. I'll blame that on the speedlight for now.

The Average:
*PC sync port instead of micro/mini jack. Plus it uses the screw collar type connector, but the screw collar is about impossible to tighten fully.
*Lower resolution LCD
*Pretty small LCD text
*Harsh white LCD backlight in dark environments

The Quirks:
*Approximately .5 stop more light in HSS than if the flash was mounted on camera... No idea why, but I saw no downside even at 1/8000. (I did check for position/falloff considerations)
*Must be mounted on camera and the camera's meter must be active for communication to take place.
*If the camera's metering goes to standby before the flash does the zoom positions change. And then they change back again when the metering is woken up.

The Conclusion:
All things considered, I like the RT810 quite a lot. It combines a lot of features with generally good build quality and a user interface/controls that are easier to use than most.
In fact, for me the ease of use is the shining star of these units. With some other TTL triggers I fumble around and feel like I need to pull out a manual if I haven't used them in a while. Because of that I use manual triggers instead if there is no particular need for TTL/HSS. I would be just as happy to use the RT810's as my only set of triggers.
If the price comes in at around the price of Pixel King Pro's and similar I would say Voeloon has a winner here.

They did say that they would be addressing my concerns in order to improve the product prior to release. If they improve the screen's resolution, font size, and backlighting I would probably put these up there with the best of them.

The Long Version
 
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I suspect these RT's are just using a somewhat slower pulse rate, possibly by accident.

In order for PW to gain "up to two stops" I would think the pulse rate would have to vary with the shutter opening/travel speed/flash duration... and I would think that would need to be somewhat camera specific. Unless Canon speedlights are/were just using WAY faster of a pulse rate than any Canon body actually requires.
If that is the case, and if the same were true for Nikon speedlights, then I would think they would have also optimized HSS for Nikon at the same time.
 
I suspect these RT's are just using a somewhat slower pulse rate, possibly by accident.

In order for PW to gain "up to two stops" I would think the pulse rate would have to vary with the shutter opening/travel speed/flash duration... and I would think that would need to be somewhat camera specific. Unless Canon speedlights are/were just using WAY faster of a pulse rate than any Canon body actually requires.
If that is the case, and if the same were true for Nikon speedlights, then I would think they would have also optimized HSS for Nikon at the same time.

All Pocket Wizard's Mini/Flex flash sync tweaks are camera model specific, and unique to PW as far as I know.

- Peak-Hypersync tightens up slack in the default x-sync timing, giving clean exposures at up to 1/400sec or even 1/500sec with some cameras.
- Optimised High Speed Sync cuts the generous default burn time, tailors it to shutter speed, and uses the spare energy to increase brightness substantially (with Canon) or reduce recycle time (Nikon).
- Optimised second-curtain sync pushes the timing much closer to the second curtain cut-off point, for better results at faster shutter speeds.

Then there's Tail Hypersync with adjustable off-set, as common to a few other triggers these days.

With these Voeloons, I would guess commercial success depends on how they compare to Yongnuo, both here and in the US. YN has gained a very strong market position with excellent performance, good reliability, some great prices, and a seemingly unstoppable flow of new products.
 
With these Voeloons, I would guess commercial success depends on how they compare to Yongnuo, both here and in the US. YN has gained a very strong market position with excellent performance, good reliability, some great prices, and a seemingly unstoppable flow of new products.
I would have to agree. AFAIK, Voeloon are relatively unknown; I had never heard of them. Being this late to the market means they will have to offer more for less to get a hold... and I believe that is their intent.
 
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