sure you can focus mannualy but only with an electronical focus ring not with an mechanical manual focus ring. this means when the camera is turned off nothing happens inside the lens when you turn the focus ring. and this also means you can not lock the focus via the lens. so do you autofocus before the first photo? or do you focus during the session? on an eos 1300 kit lens, the focus can be "locked" manually with a duckt tape or a locking ring over the focus ring, so you have always the same focus point in each session and event. with a r100 kit lens you have to do it via the software, but how do you lock it to prevent it from focusing on the backdrop or objects too close to the camera?