Hi everyone, Now I know this lens has been around the block for quite some time. And for the purist, this is at best a decent run-and-gun lens for a R16 camera. However I might be using it for a smaller project soon and I am having issues finding information about the lens. More specifially the aperture. I know it is a variable one, but when does it move? Because physically the two lenses I had access to use, both have the aperature at F/1.6 over the whole zoom-range, physically. So planning a decent exposure is a lot harder. Now I know I can lock it to F/2.2, but in this scenario I would love yo be able to use the full speed of the lens. Appriciate any input. //C