Canon Speedlite 90EX Instruction Manual

Pages 106

Year 2015

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Canon Speedlite 90EX Specification

The Canon Speedlite 90EX is a compact and lightweight external flash unit designed specifically to complement Canon's mirrorless camera systems, particularly the EOS M series. Weighing just 50 grams and featuring a sleek, minimalist design, the Speedlite 90EX is highly portable, making it an ideal choice for on-the-go photographers. The flash offers a guide number of 9 meters at ISO 100, providing sufficient illumination for a variety of shooting scenarios, including low-light conditions and indoor photography.

The Speedlite 90EX supports wireless flash capabilities, acting as a master unit to control multiple off-camera slave flashes, enhancing creative lighting possibilities. It operates in E-TTL II mode, ensuring accurate and consistent exposure by automatically adjusting the flash output based on the camera's metering system. The device is powered by two AAA batteries, offering a convenient power source that is easily replaceable.

Despite its compact size, the Speedlite 90EX provides a wide-angle coverage of up to 24mm with full-frame cameras, making it versatile for a range of compositions. The flash unit integrates seamlessly with the camera's user interface, allowing for straightforward operation and quick adjustments. The recycling time is efficient, ensuring that photographers can quickly capture successive shots without significant delay.

The Canon Speedlite 90EX is designed with durability in mind, featuring a robust construction that withstands regular use. Its compatibility with Canon's optical wireless system expands its functionality, making it an excellent addition for photographers seeking to enhance their lighting setup without adding significant weight to their gear. Overall, the Speedlite 90EX offers a balance of performance, portability, and convenience, aligning well with the needs of both amateur and professional photographers.

Canon Speedlite 90EX F.A.Q.

How do I attach the Canon Speedlite 90EX to my camera?

To attach the Canon Speedlite 90EX to your camera, align the flash's mounting foot with the camera's hot shoe and slide it in until it clicks into place. Ensure the lock lever is in the locked position to secure the flash.

What is the guide number of the Canon Speedlite 90EX, and why is it important?

The Canon Speedlite 90EX has a guide number of 9 meters at ISO 100. The guide number indicates the flash's power output and helps determine the optimal aperture and distance settings for proper exposure.

How can I enable wireless flash control with the Canon Speedlite 90EX?

The Canon Speedlite 90EX can be used as a master unit to wirelessly control other compatible Canon Speedlite units. Set the flash to wireless mode using the camera's menu and configure the settings for the desired channel and group.

What should I do if the Canon Speedlite 90EX does not fire?

If the Canon Speedlite 90EX does not fire, ensure it is securely attached to the camera, the batteries are fully charged, and the flash is powered on. Also, check the camera's settings to ensure the flash firing option is enabled.

How do I change the batteries in the Canon Speedlite 90EX?

To change the batteries in the Canon Speedlite 90EX, slide open the battery compartment, remove the old batteries, and insert new AAA batteries, ensuring the correct polarity. Close the compartment securely.

Can the Canon Speedlite 90EX be used with non-Canon cameras?

The Canon Speedlite 90EX is designed primarily for Canon cameras with an E-TTL or E-TTL II system. It may work in manual mode with some non-Canon cameras, but full functionality is not guaranteed.

What is the recycle time for the Canon Speedlite 90EX?

The recycle time for the Canon Speedlite 90EX is approximately 0.1 to 5.5 seconds, depending on the power level and battery condition. Using fresh batteries will ensure optimal recycle times.

How do I perform a firmware update on the Canon Speedlite 90EX?

The Canon Speedlite 90EX does not support firmware updates as it is a basic flash unit without advanced programmable features.

What are the maintenance tips for the Canon Speedlite 90EX?

To maintain your Canon Speedlite 90EX, keep it clean from dust and moisture, store it in a cool, dry place, remove the batteries when not in use for extended periods, and periodically check for firmware updates or service advisories from Canon.

How do I use the Canon Speedlite 90EX for bounce flash photography?

The Canon Speedlite 90EX does not have a rotating or tilting head for bounce flash. Consider using a white card or an external modifier to redirect the flash output for bounce effects.