Today's question from Amer D. is, "When using multiple flashes in the same optical group, does E-TTL fire them all at the same power? What if some of those flashes are larger or more powerful while others are smaller like the Canon 600EX and the 430EX? The camera has no clue which way the flashes are pointed, so how does it know what to do?"

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00:00 Intro
01:15 What is TTL?
03:39 TTL with one flash
05:05 Canon ST-E3-RT version 2 TTL power
05:38 Face priority flash metering
06:59 Multiple flashes in one TTL group
10:44 TTL ratios
12:50 TTL with different flashes
13:31 Individual group TTL control
12:54 How do I shoot?
16:03 Outro

As Luke Combs' tour photographer since 2019, David Bergman has documented the historic rise of the reigning CMA Entertainer of the Year both on stage and off. But that's only the latest in Bergman's own storied 30+ year career. He spent nearly a decade traveling the world with Bon Jovi and has toured with other artists including Barenaked Ladies, Sarah McLachlan, and Gloria Estefan. As a sports photographer, he covered numerous Olympics, Super Bowls, and World Series games, and has 13 Sports Illustrated covers to his credit. He's also photographed eight US Presidents, the Queen of England, and Cuban dictator Fidel Castro. However, his proudest accomplishment is his work as a photo educator, where he has given back to the industry that has treated him so kindly. Through his unique "Shoot From the Pit" live concert workshops, Bergman has taught hundreds of aspiring music photographers in a real-world setting. His work as a Canon Explorer of Light, Adorama YouTube host, and public speaker has also helped photographers around the world advance their photography skills.

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✘ PRODUCTS USED:

Canon EOS R5 Mirrorless Digital Camera Body
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Canon RF 24-70mm f/2.8 L IS USM Lens
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Canon Speedlite 600EX II-RT Shoe Mount Flash
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Canon ST-E3-RT Speedlite Transmitter, Version 2
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Westcott Rapid Box Switch Octa-M
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Westcott 40-Degree Egg Crate Grid for Octa-M
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Westcott Bruce Dorn Triple Threat Bracket
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Flashpoint Shoe Mount Triple Bracket with Swivel Umbrella Holder
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Flashpoint Shoe Mount Triple Bracket
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Manfrotto Quad Bracket for Ezybox
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Glow S-type Bowens Mount Bracket for Speedlites and Flash
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✘ PRODUCTION EQUIPMENT USED:

Canon EOS R Mirrorless Full Frame Digital Camera Body
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Canon RF 24mm f/1.8 Macro IS STM Lens
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Manfrotto MT055XPRO3 Black Aluminum Tripod with MVH502AH Pro Video Head
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CLAR Illumi Max 500 High Power 5600K LED Light
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Glow EZ Lock Octa Quick XL Softbox With Bowens Mount (48")
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Prograde Digital 512GB SDXC UHS-II V90 Memory Card
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All Prograde cards and readers
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#flashphotography #photographylighting #adorama

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Get more information about David's #shootfromthepit live concert photography workshops at
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THANKS SO MUCH FOR WATCHING!

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