hi I just recently purchased NN5 a week ago. i told the gent at the camera shop where I purchased it that I will be using a 50mmf1.2L with my 5Dmk2. he then looked at the canon chart and informed me that 45deg detent ring is what I should put in the lower assembly.
he tried to explained it to me but i was in a hurry for my flight. is there any literature that I can read up about this? i want to shoot as soon as I can but would like to understand more about the techniques in using other lenses.