Thanks Etienne, The cocker on the R4 seems to play the same role as on the R3 then. Quite convenient when you want les noise around. Have you ever tried inserting some insulating stuff in order to prevent contact between those three pins and the camera? What are the riskes if I do? Thanks again to everyone. Phileicangenieux ------ Unsubscribe or change to/from Digest Mode at: http://www3.telus.net/~telyt/lrflex.htm Archives are at: //www.freelists.org/archives/leicareflex/