TTL Optical Vs radio triggers

Started May 22, 2014 | Discussions thread
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Falanso
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TTL Optical Vs radio triggers
May 22, 2014

hello,

is there any difference between optical and radio triggers? (else than the direct sight and range)

because as far as i know, that the off cam flash when it's on a trigger (ttl) it will think it's on camera. so will it behave right as a slave?

isn't the triggers a hack for the ttl system?

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