Hi. I use a Vb and really enjoy it. It was the last Rolleicord produced, and only one with a removable focus hood. You will need an exposure meter for slide films. The hood and filters are all Bayonet I fitting. You can fit a shutter release button to the cable release socket for an alternative to the standard release which you push horizontally to operate. To change aperture you hold the shutter speed control and push the aperture lever. If you don't, they move together. You do the reverse to change speed. This is simple, once you try it out. It is also a very lightweight camera to carry around.