Thank you very much!! For now I'm using an L-plate to put my etrsi in vertical (I want put all these kilograms on the center of the tripod..) but it's not the best, it protrudes too much from the body and it's really.. ugly! Anyway I can use the cable release this way.I can't remember where my rotating adapter is as I typically use the camera on a three way head and it's a simple matter to turn it 90 degrees .
When I get some free time , I'll see if I can find it and take some detailed shots with it attached along with the cable release .