wireless flash on NEX 7

Started Feb 9, 2013 | Discussions thread
macsoft3
Regular MemberPosts: 151
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Re: wireless flash on NEX 7
In reply to windowsmaclinux, Feb 9, 2013

windowsmaclinux wrote:

I've got the 20AM to wirelessly fire the 42AM on my NEX-6 (and it should be same on the 7). No it is not optical if what you're thinking of is the remote flash simply fires when it senses a flash pulse from the triggering flash. If that's the case then the built in popup flash on the NEX-7 could have been the commander and you won't have wireless TTL. If you read the link I sent the triggering flash actually sends a complex sequence of light signals to the remote flash, instructing to fire a metering burst, then tell the remote flash how much power to put out and then tell it to actually fire to illuminate the scene. That's why you need the 20AM because it can send out these complex instructions to the remote flash. Also, the light spillage is very small.

I do not see why people are complicating this "No it is not optical if what you're thinking of is the remote flash simply fires when it senses a flash pulse from the triggering flash."

If the COMMUNICATION is done by light pulses, THEN ITS OPTICAL. " the triggering flash actually sends a complex sequence of light signals" OPTICAL THEN! what? if the NEX 7 has a built in flash, if can't be programed to send a "complex" sequence of light signals?

But i'm passed that, OK its optical, and they somehow dont want to make the built in flash to send the light signaling..

QUESTION: How can I trigger a flash inside a soft box WITH TTL  with my NEX 7?

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