David Busch's Canon EOS R Guide to Digital Photography by David D. Busch

Author:David D. Busch
Language: eng
Format: epub
Publisher: Rocky Nook
Published: 2019-04-02T00:00:00+00:00

Canon offers a broad range of accessory electronic flash units for the EOS R. They can be mounted to the flash accessory shoe, or used off-camera with a dedicated cord that plugs into the flash shoe to maintain full communications with the camera for all special features. (Non-dedicated flash units, such as studio flash, can be connected using a PC/X adapter.) They range from the Speedlite 600EX II-RT and Speedlite 580EX II, which can correctly expose subjects up to 24 feet away at f/11 and ISO 200, to the 270EX II, which is good out to 9 feet at f/11 and ISO 200. (You’ll get greater ranges at even higher ISO settings, of course.) There are also two electronic flash units specifically for specialized close-up flash photography.

I power my Speedlites with Panasonic Eneloop AA nickel metal hydride batteries, seen in Figure 9.15. These are a special type of rechargeable battery with a feature that’s ideal for electronic flash use. The Eneloop cells, unlike conventional batteries, don’t self-discharge over relative short periods of time. Once charged, they can hold onto most of their juice for a year or more. That means you can stuff some of these into your Speedlite, along with a few spares in your camera bag, and not worry about whether the batteries have retained their power between uses. There’s nothing worse than firing up your strobe after not using it for a month, and discovering that the batteries are dead.

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