Thank you very much Ryan for your response,
I just received from Atomos a suggestion option that seems to solve my problem:
In Shogun’s audio screen they build a “frame delay” option with quit wide scale, For mee however audio delay of 2 frames looks all right.
So Canon 5Diii and Shogun are stil a good match and their support is great.
On my Tascam 60d markii recorder there is a “slate” option, could this option make sync in post easier? If so what is the best way to use this option?
Looking forwards to your respons and thanks again
S.Pinto