When we talk about different sensor sizes we start getting into 'virtual this' and 'equivalent that', aren't we just adding confusion? The way I see it, the sensor (or film) size does not change the characteristics of the lens or the shot. The only change is the amount of the image that hits the sensor and HOW WE REACT to that change in the field of view. No matter what the sensor/film size - if we use the same lens, from the same distance and print the same image (i.e. crop the larger one) of the same size (i.e. 8x10), nothing changes. If we change one of the above, then we should know how that change affects the final print, not say that the sensor size produces an ‘effective something or other’. Make sense? - TF