Before I step into the technological age and plop down the cash for a metered prism finder for my RZ67 I have a quick question. I am aware that the AE prism takes the reading through the lens, so it takes into account any filters I might have on the lens, but will it also adjust as needed when I change the f-stop? Or will I need to use the DOF preview to get the correct reading?

I looked at the manuals online, but I didn't get a straight answer. This is the for the original AE prism NOT the 2nd model.

Thanks