
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
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
What system does the Phottix PH89016 receiver work with, and do I need a specific transmitter?
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.
Does this receiver support TTL auto-exposure, and how does EV compensation work in practice?
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.
How does High Speed Sync work through this receiver and what does it enable creatively?
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.
What is the wireless range, and how reliable is the 2.4GHz signal in environments with interference?
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.
Can I use Second Curtain Sync through this receiver, and what does that enable?
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.