Phottix

Phottix PH89016 Strato TTL Wireless Flash Trigger Receiver - Canon

Expand your Phottix Strato II system with TTL pass-through, HSS to 1/8000s, and rock-solid 2.4GHz wireless control for Canon shooters on location.

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Overview

The Phottix PH89016 Strato TTL Receiver is the key that unlocks wireless TTL and High Speed Sync for Canon shooters working within the Phottix Strato II Multi system. Paired with a compatible Strato II transmitter, it brings full TTL metering, ±3 stops of EV compensation, HSS up to 1/8000s, and Second Curtain Sync to your off-camera flash — capabilities that define professional location lighting flexibility. The 2.4GHz link at over 150 meters gives you room to separate your flash meaningfully from your camera position, whether you're working with a boom, a second shooter's radio-triggered unit, or a fill light across a large venue.

The backlit LCD and dedicated quick-change buttons are a practical design choice that pays dividends during fast-paced editorial or event work — reading and adjusting channel, mode, and EV level in dim reception halls or under direct sun is straightforward without removing the receiver from the flash. For Canon TTL shooters who have committed to the Strato II platform, this receiver is a reliable, feature-complete expansion component. The system does not bridge to other trigger brands or Canon flashes outside the Strato II ecosystem, so its value is highest for photographers building or expanding a dedicated Phottix-based wireless lighting rig.

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

Compatible System
Phottix Strato II Multi
Camera Compatibility
Canon (TTL)
Channels
4
Groups
4
Frequency
2.4 GHz
Range
Over 150 meters
Sync Speed
Up to 1/250s standard; up to 1/8000s (HSS)
EV Adjustment
±3 stops in 1/3-stop increments
Modes
TTL, Manual, Multi, HSS, Second Curtain Sync
Display
Backlit LCD
Model
PH89016

Frequently Asked Questions

This receiver is designed exclusively for use with the Phottix Strato II Multi flash trigger system. It will not function as a standalone receiver or pair with other trigger brands. You need a compatible Phottix Strato II Multi transmitter — sold separately — on your camera's hot shoe to trigger this receiver wirelessly.
Yes, it passes TTL metering data between your Canon body and a compatible TTL flash, maintaining the camera's automatic exposure calculations wirelessly. The receiver also allows EV adjustment of ±3 stops in 1/3-stop increments via quick-change buttons and a backlit LCD — useful for dialing in fill ratios or compensating for reflective surfaces without breaking your shooting flow.
With HSS enabled, this receiver allows your Canon TTL flash to sync at shutter speeds up to 1/8000s — well beyond the standard sync ceiling of 1/200–1/250s. In practice, HSS lets you use wide apertures (f/1.4, f/2) outdoors in bright light while still balancing with flash, without neutral density filters. It's the key to shooting open-aperture environmental portraits in direct sun.
The Strato II system specifies a range of over 150 meters. The 2.4GHz frequency offers strong penetration through typical location obstructions — walls, light stands, modifier frames — though heavily congested RF environments (convention halls, wedding venues with many active wireless devices) can occasionally cause missed triggers. The 4-channel selection allows you to move to a less congested frequency if needed.
Yes, Second Curtain Sync (rear curtain) is supported, firing the flash at the end of the exposure rather than the beginning. For photographers shooting motion with slow shutter speeds — light trails, panning subjects — this places the sharp, flash-frozen image at the end of the motion blur rather than the front, producing more natural-looking motion rendition in the final frame.