Is YN-622-tx the solution for 7D MK2

I have a pair of YN-622C (External flash transceivers) that I used to use with 7D classic and 5D3 along with either 580EX or 470EX speedlites.
When used on 7D MK2, the YN-622C have communication issues resulting in the improper flash exposure (almost 100% power).
On browsing the internet, found that there is new YN-622C-tx transmitter that should resolve this issue.
I have seen mixed reports of it being working with 7D MK2.

Please share your experience with YN-622C-tx on 7D MK2 with YN-622C on external flash.
Does it work as expected?

So you're saying you can't adjust flash output from the trigger?

If so, then the TX would allow for this. At least I can adjust my flash from the remote on the camera when I use the 622 TX with a 622 C on my 6D.

I would think it would work the same for you on the 7D.

I am not convinced there is a difference in the way the 622c behaves on the 7D2. Some settings and descriptions would help. The 622 system doesn't add anything to the camera/flash functionality. It just utilizes what the equipment is already capable of. User error, perhaps?

I just checked mine (622c), and it works on my 7D mk2 just like it does on my 7d and 6d. It just acts like a flash so there shouldn't be any problem. Ettl works as expected and manual does also. My flashes are 580ex II and 480 ex ii.

I get the full on camera external flash menu when the 622c is powered up.

Ron

The last time I tried my 622C on my 7D2, E-TTL was significantly overexposing at close distances, and underexposing further away; it seemed to be OK at middle distances (15-40 feet). I had the latest firmware (Mar. 2015) at the time, and also current on the 7D2. I never noticed a problem with the 7D or 5D3.

I have the latest C-TX (1.08) and it works fine in M mode, but I haven't tried it in E-TTL with the 7D2 yet. The nice thing about the C-TX is that you don't have to fumble with the camera menu if you don't want to; everything is accessible from the trigger's visual menu.

Yes. Some have reported that the 622C alone works. But looks like there is some difference in the firmware that causes it not to works on 7D MK2.
I actually have used it without any issue on 7D and 5D3.
But when I used it on 7D MK2, everything was overexposing. I could get a bit of control after switching to manual flash mode, but even then it was putting out too much light.
That is where I googled and found the issue other have reported for 622C and also mention of 622C-tx being the solution.

Could you please share your experience with 622C-TX in E-TTL once you try it?

The 622C had several problems with the 7D II when that camera was released. They were largely fixed with 622s manufactured from December 2014. No USB - no way to upgrade the firmware in earlier units.

The 622C-TX with the latest firmware (v1.08) fixes all known 7D problems.

622s with a date (in the battery compartment) of 12/2014 or later work with the 7D II, but a problem with one uncommon set of settings remains.

The just-released YN622 II should be fine, and it has a USB port for user updating as well as the latest pcb hardware and compatibility with YN560-TX.

I may have to upgrade yet again. I don't have another shoot til Tuesday, but I'll try to do a quick E-TTL comparison then.

Thanks.
That explains a lot. The date code on my 622C is 4/2013.
So I need a pair of 622C II or only one that goes on the body is good enough (with the older 622C on the flash).
Also if I go for 622c-Tx will that work with old 622C in the same fashion or will need 622C II?
Appreciate your feedback.

Ah! I missed the flashes that you are using. The Canon 580EX is ok for E-TTL, but does not handle Manual power level settings through its hot-foot. (What is 470EX?)

The YN622C is unable to bypass that restriction. The YN622C-TX can, using C.Fn 05. It uses the E-TTL command set to imitate Manual levels.

My YN622C II parcel has arrived in this country, and its feature set will be checked soon. I think that it is unlikely to add that facility, as there needs to be some sort of feedback to make the setting (like the lcd display on the C-TX unit.

The original YN622C with an E-TTL flash handles this side-step. I would try a YN622C-TX (v1.08) on-camera with C.Fn 05 = On, and a YN622C under the flash.

Have you looked at TOYUG? Link is in my signature.

Sorry I meant 430EX
I have been following TOYUG since early 2013. Thanks for that. It's really helpful document.
In summary I am trying to find a solution (of over exposure problem) to my YN-622C for use with 7DMKII and either of 580Ex or 430EX.
Trying to figure out what is optimum way that will also retain the classic YN-622C also in the working setup.

If you want to use Manual output levels, you must use on-camera the YN622C-TX with those flashes. If you want to use only E-TTL, you can use a recent 622C, or better, the 622C II. You can use your existing 622C as remote.

CliveyBoy wrote in post #17697214
If you want to use Manual output levels, you must use on-camera the YN622C-TX with those flashes. If you want to use only E-TTL, you can use a recent 622C, or better, the 622C II. You can use your existing 622C as remote.

Ah. Okay. I was thinking the other way. i.e. latest 622C as remote.
Thanks for clarifying.

The Manual with my pair of YN622C II that arrived today makes it clear that the Mk II units, like the original ones, cannot pass Manual levels to a remote with a 430/550/580 flash on it.