430EX II, only 9 focus points a limiting factor with 19 focus points of 70D?

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bugbait
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430EX II, only 9 focus points a limiting factor with 19 focus points of 70D?
7 months ago

I am debating buying the 430EX II this week. The specs state up to 9 focus points. I am wondering if I use this as my only flash if the auto-focus beam will still be very effective or do I need a 580 series flash to cover 19 points and above?

Also, is the beam visibly more startling with one model over the other? I wouldn't want to blind a hummer!

I will be photographing hummingbirds and other small creatures in cloudy weather.

Would PowerEX high copacity batteries give faster cycle times? I like the AAA PowerEX I have tried this month but when I left them setting for a few days they don't seem to hold the juice as well as others had stated regular Eneloops do. A week or two will go by and I don't get out for a nature walk.

If the PowerEX improved considerably over the 2 second cycle of the stated Eneloop results; I could just keep a small percentage of Eneloops as back up but plan to use the PowerEX the most.

Until my summer purchase of a 70D, I be using it with the EOS-M and 55-250 STM and possibly the Yongnuo 622C wireless triggers.

Thanks in advance for any advice.

BugBait

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Canon EOS M Canon EF-M 22mm f/2 STM Canon EF-S 55-250mm f/4-5.6 IS STM +1 more
Canon EOS 70D
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