Nokishita leaked the six accessories slated to come at the same time as the expected R3 “not a flagship” camera. Some of them follow typical Canon nomenclature, allowing us to guess what they are…
The ST-E10 is likely the wireless flash transmitter expected to exploit the new, “smart” hotshoe.
The AD-E1 may be the power adapter, although Canon’s nomenclature for these is inconsistent.
The ER-L1, ER-HE, and ER-H are possibly different versions of the included neck strap, which have traditionally had SKU notations starting with “ER-“.
The R3 spotted in the wild, along with what we take to be the ER-L1.