Phottix

Phottix PH89016 Strato TTL Wireless Flash Trigger Receiver Canon

4.4 (69 reviews)

Keep TTL accuracy across every Canon speedlite in your multi-flash lineup with the Phottix Strato receiver that fires reliably past 150 meters.

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Overview

For Canon shooters who've outgrown on-camera flash but don't want to sacrifice TTL metering, the Phottix Strato receiver plugs directly into that gap. It's built for the working photographer — the event shooter managing three speedlites across a reception hall, or the portrait photographer positioning a hair light thirty feet away. With full E-TTL II passthrough, your camera reads the scene and drives all connected flashes automatically, so you can concentrate on composition rather than power levels. Add High Speed Sync up to 1/8000s, and you have the freedom to shoot wide open in harsh midday sun without wrestling with neutral density glass.

The receiver's backlit LCD is a practical field tool — readable in dim venues where squinting at a tiny LED would cost you shots. The bayonet-style hotshoe connection locks securely, which matters when a speedlite is perched on a stand arm and vibrating with crowd movement. Group and channel separation across four channels gives you meaningful creative control: key light, fill, and background can all live on separate channels, dialed independently from the transmitter. It's a straightforward, well-built piece of kit that earns its place in a Canon flash bag.

Key Features

TTL flash trigger with EV adjustments (+/- 3 stops in 1/3 stops)

Quick-change buttons and Backlit LCD to adjust EV level, mode, and channel

High Speed Sync mode - 1/8000s

Second Curtain Sync mode

Wired and wireless shutter release functions

Specifications

Feature
Value
EV Adjustment
+/- 3 stops in 1/3 stops
High Speed Sync
1/8000s
Sync Mode
Second Curtain Sync
Functions
Wired and Wireless Shutter Release

Frequently Asked Questions

It works with Canon TTL speedlites that support E-TTL II — so flashes like the 600EX-RT, 580EX II, and 430EX III-RT are all covered. The Strato system passes full TTL communication, so your camera's metering drives the flash output just as if it were on-camera.
The receiver itself carries the EV adjustment from the transmitter side — you push +/- 3 stops in 1/3-stop increments via the backlit LCD without touching the speedlite. That's the real workflow win for run-and-gun event shooting.
Yes — HSS fires up to 1/8000s, which lets you shoot wide open in full sun without a neutral density filter. For a Canon 85mm f/1.2 at midday, that means you can still separate your subject from a blown-out background without stopping down.
The kit ships with a transmitter and one receiver. This PH89016 is an additional receiver — useful when you're running two or three off-camera lights and need each one on its own Strato channel independently.
Second Curtain Sync fires the flash at the end of a long exposure, freezing your subject's final position while motion blur trails behind it — a technique commonly used for moving subjects at concerts or street scenes. This receiver supports it natively via the Strato II transmitter.