Yongnuo YN-622C Controller Trigger

I still don't think I'm 100% clear on this.

If I have a 622 Master on the 7D plus slave 622s on various flashes (580EX, 580EX II, etc.) then what menu do I get?

If I get the full menu on the 7D then I should be able to control the manual power via the 7D flash control menu - even to the 580EX.

This is sort of what your last post infers in that you have more in camera control of the 550EX slaved through a 622 with another 622 master on camera than with the 550EX directly on camera.

iituner wrote in post #15273879
Is it possible to adjust the power directly to the flash 580EX(550EX, 430EX), if it is located on the transmitter and in the camera menu select "Manual Flash", "Wireless func. in groups A: B, C"?.

1. I can place a 550EX on a remote 622C, set it to a manual level, and fire it when the camera is in E-TTL or Manual mode. I can change the level on-flash and get the expected change in exposure. Mix mode is not required. Changes in-camera are not copied to the flash - the flash over-rides.

There were early reports that this configuration would produce only a full dump. I suspected then that it was due to poor contacts, and I am sure of it now.

2. An on-top flash is handled differently than remote flashes. Canon programmes it to be a fourth group with one member and with its own rules. Then, YN programmes it with their add-on flexibility rules. I'm not going to test that.

3. A pc-sync cable can be used to rigger a 550EX synchronously using any of the three sync modes. I am not sure about what sync modes are available whem the 550EX is on a 622. It seems to be only 1st and HSS, needed for ETTL to function.

4. I tend to feel "don't fart around; get the right gear to do what you want to do." And, know how to work around problems in an emergency. Just don't live in that state.

I don't think so.
Check this link out
https://docs.google.co​m …FpqNkpBYXBHajA/​edit?pli=1

[QUOTE=DDL;15273935]I still don't think I'm 100% clear on this.[QUOTE]
You have to change your thinking - as I say in my review "what you know gets in the way of what you could know."

DDL wrote in post #15273935
If I have a 622 Master on the 7D plus slave 622s on various flashes (580EX, 580EX II, etc.) then what menu do I get?

Exactly the same menu as with no flashes whatsoever. The flashes are irrelevant. What you get is between camera and 622C transmitter.

What effect the 622 transmitter is able to produce depends on the Canon engineering within the remote flashes.

DDL wrote in post #15273935
If I get the full menu on the 7D then I should be able to control the manual power via the 7D flash control menu - even to the 580EX.

That is your proposition. It is wrong. Where do you get "should" from - magic?

DDL wrote in post #15273935
This is sort of what your last post infers in that you have more in camera control of the 550EX slaved through a 622 with another 622 master on camera than with the 550EX directly on camera.

You may have inferred that, but I did not intend to imply it. The 550EX is still exactly as designed and manufactured. Stop watching Transformers!

The apparent extra capabilities are in-camera ones, like when the camera produces the Fire instruction. That is camera, not trigger, not flash. The 622 knows how to get the camera to do that.

windpig wrote in post #15273985
I don't think so.

Sorry - what do you not think so?

CliveyBoy wrote in post #15274043
Sorry - what do you not think so?

Sorry, we cross posted. I was responding to how capable the camera menuing on the 550 was.

I think I figured out where I went brain dead on this issue.

On a 7D the 622 will output the internal 7D flash control menu and not the flash dependent menu.

So I should play with that to see if it controls the 580EX and if so then the 622 will do similar except wirelessly radio versus 7D flash.

windpig wrote in post #15274058
Sorry, we cross posted. I was responding to how capable the camera menuing on the 550 was.

The doc you linked to is 21 pages long. What you saw as relevant escapes me.

When iituner asked me a question, I re-checked both with my 550EXs, and other references. My post above reflects my findings. Some parts of the doc will be checked for compliance with the latest info. (That's why there have been 14 revisions so far.)

DDL wrote in post #15274132
I think I figured out where I went brain dead on this issue.

On a 7D the 622 will output the internal 7D flash control menu and not the flash dependent menu.

So I should play with that to see if it controls the 580EX and if so then the 622 will do similar except wirelessly radio versus 7D flash.

A 7D will output the internal 7D flash control menu.
The 622 transmitter and its receivers will do their best to get any mounted flashes to conform to the menu settings.
The remote flashes will show most of these settings on their LCD displays.
The user needs to examine esposures using several settings to see what is actually working.
Or read, say, Canon tutorials on 580EX II or 430EX II menu control to learn the full facts.

Essentially, you can control the 580Ex FEC in ETTL mode. You can also include it in ETTL ratio settings.

iituner wrote in post #15274183
Not being the owner of the old Canon flash units and test them ever. I did not know about such nuance.
Thanks for the information.

I knew about the differences - Master flash enabled/disabled and treated as group A - but Canon doesn't talk about anything else, AFAIK.

It was emails from Lianggc that produced the Aha! moment. I have the 2002 patent document for the whole comms procedure, and looked it up again, and understood.

There, amongst all the codes was a strand called Master Flash, alongside Group A, and B, and C. Users do not usually need to know, thank goodness.

My appreciation for Lianggc went up a big notch.

CliveyBoy wrote in post #15274134
The doc you linked to is 21 pages long. What you saw as relevant escapes me.

When iituner asked me a question, I re-checked both with my 550EXs, and other references. My post above reflects my findings. Some parts of the doc will be checked for compliance with the latest info. (That's why there have been 14 revisions so far.)

Page 4 covers the what the 622 can do with the 550. Sorry, I was not succinct, I got distracted

windpig wrote in post #15274229
Page 4 covers the what the 622 can do with the 550. Sorry, I was not succinct, I got distracted

I have a wife, too.

I hoped it might be. That section is being re-worked for logical reasons to fix historical shifts in direction.

The type A camera will do things with a class 2 flash (earlier Speedlites), but only if the flash is engineered to do it all. Trying to help people know what flash to buy, or "will it work with my X" is not easy, in 1/4 page.

I love my YN622c's

CliveyBoy wrote in post #15274191

A 7D will output the internal 7D flash control menu.
The 622 transmitter and its receivers will do their best to get any mounted flashes to conform to the menu settings.
The remote flashes will show most of these settings on their LCD displays.
The user needs to examine esposures using several settings to see what is actually working.
Or read, say, Canon tutorials on 580EX II or 430EX II menu control to learn the full facts.

Essentially, you can control the 580Ex FEC in ETTL mode. You can also include it in ETTL ratio settings.

I tried using my 7D with the latest firmware (2.0.3). Using the 7D built in internal flash control menu I was able to adjust the power on my 580EX (off camera Gr A) remotely while the flash was in MANUAL power exposure control (set from the 7D menu). So this means that I should likely be able to do this through the 622C if I understand that it just transmits the camera body's built in flash control program via wireless radio versus the body's built in flash.

I just need to get my hands on a set of these to try now!

DDL wrote in post #15277782
I tried using my 7D with the latest firmware (2.0.3). Using the 7D built in internal flash control menu I was able to adjust the power on my 580EX (off camera Gr A) remotely while the flash was in MANUAL power exposure control (set from the 7D menu).

Yes, you can, but this is irrelevant.

Digital data Path: Camera processor ->built-in flash -> 580EX Wireless sensor (near-IR transmissions) -> 580EX processor.

DDL wrote in post #15277782
So this means that I should likely be able to do this through the 622C

No! The 622C does not have a light-pulse code receiver. That path is not available.

DDL wrote in post #15277782
if I understand that it just transmits the camera body's built in flash control program via wireless radio versus the body's built in flash.

The data transmitted to a Master via the camera's hotshoe is different than that sent to the built-in flash.

Digital data Path: Camera processor ->622 Master -> 622C remote -> nothing!

The 580EX does not have the ability to do anything with Manual code instructions. There is no path for these via hot-foot to its processor.

The 430EXII and the 580EXII are the first to have the required capability to interpret the Manual codes via hot-foot.

Radio-Poppers are the only triggers AFAIK that convert the electrical codes back into lightpulse codes and poke them back into the wireless sensor.