Now the NII, Yongnuo comes seems its contact with its customers not to have lost, of the repeatedly criticized only weak point of this device picks up exactly, namely the centrally top-mounted on / off button is replaced by a side-mounted modified slider. The operation (on / off) is thereby made much easier and partially possible.
Both versions are offered in parallel - there is no reason, the previous version to buy, if you can get for his camera for virtually the same price, the NII (for use as a remote release) even with me with the right cable for D800 ().