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Speedlite 90EX


Item Code: 6825B002AA


Ultra-compact and ultra-lightweight flash unit, perfect for the Canon EOS M Digital Camera

Whether mounted on top of the Canon EOS M Digital Camera or stowed in a pocket, the diminutive yet powerful Speedlite 90EX is 1.7" (w) x 2.0" (h) x 2.6" (d) and a featherweight at 1.8 oz. It runs on 2 AAA batteries, recycling quickly between exposures. To save power, it automatically turns off after 5 minutes of idle operation.

Easy and intuitive operation

Designed for intuitive operation and as a perfect match for the EOS M Digital Camera, the Speedlite 90EX offers a number of sophisticated flash functions that are remarkably easy to use, even for beginners to the EOS line of accessories. Many functions can be controlled effortlessly through the camera's menu system, such as the AF assist beam (used to ensure accurate AF in low light situations), Canon's amazing E-TTL II flash metering, FE lock and flash exposure compensation. Even color temperature information can be transmitted back to the camera with a simple touch, so users will achieve great results.

Wireless sender functions (optical) allows multiple flash units to be controlled for creative lighting effects

For a number of advanced lighting setups, the Speedlite 90EX can be used as a sender transmitter to control multiple flash units - wirelessly! Through 4 channel optical light pulse transmission, the Speedlite 90EX can control up to three groups of receiver-enabled flashes, controlling power from 8:1 to 1:8 in 1/2 stop increments. It can transmit up to approximately 16.4 ft. indoors, up to 23 ft. outdoors. With the Speedlite 90EX controlling each light source according to the specific parameters of a shot, the creative possibilities are endless!

Supports 24mm wide-angle lenses (35mm terms)

With wide-angle coverage up to 15mm (24mm in 35mm terms) the Speedlite 90EX is designed to work perfectly with a number of popular wide-angle zoom and fixed length lenses. So whether going wide angle for an interior shot, or making sure to capture an entire group, the Speedlite 90EX provides the coverage.

Max. Guide No. 30 ft./9m at ISO 100

The Speedlite 90EX offers stronger flash performance than one might expect from its compact size. It has a maximum Guide No. 30 ft./9m at ISO 100, delivering ample power for everything from fill flash to serving as the main light source.

Standard Canon EOS hot shoe mount for compatibility with all EOS SLRs

With a standard quick-release mounting foot, the Speedlite 90EX is not only the EOS M Digital Camera's perfect companion, it's also compatible with SLRs in the EOS system. In addition, the Speedlite 90EX is compatible with Canon's camera shoe cord OC-E3 for simple, off camera shooting.


Compatible Cameras

Type-A EOS Cameras (E TTL II/E TTL Autoflash)

Guide Number

Approximately 30 ft./9m at ISO 100

Number of Flashes

Approx. more than 100 times

Recycling Time

Normal flash: Approx. 0.1 - 5.5 sec./ Lamp lights(with size-AAA/LR03 alkaline batteries)

Flash Range

Effective flash range (approx. ft/m) at ISO 100:

1) Normal Flash:

2) Approximate shooting range of EF-M lenses:(Approx. ft/m)

AF Assist Beam

System: Intermittent flash firing system
*The AF-assist beam does not emit light under the wireless flash control mode.
Effective Range (Approx.):
At Center: 9.2 ft. / 2.8m
Periphery: 8.2 ft. / 2.5 m

Custom Functions

C.Fn-01: Auto power off (ON/OFF)

Personal Functions


Power Source

Two AAA-size/LR03 alkaline (size AAA/LR6 Ni-MH or lithium batteries also possible)

Internal Sound Generator


External Power Source



Approx. 1.7 (W) x 2.0 (H) x 2.6 (D) / 44.2 (W) x 52.0 (H) x 65.0 (D) mm


Approx. 1.8 oz. / 50g



† Prices and specifications subject to change without notice. Actual prices are determined by individual dealers and may vary.

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