> In addition, I suspect the curve of the plane of focus in the non-FF lens > will be the "wrong way". In other words, if focussed correctly in the > centre, the curve of plane of focus will move back towards the lens > towards the edges of the frame. In most macro pictures, one would want > the plane of focus to move away from the lens as it moves towards the > sides. I think...
That'd be my thoughts, too, Mike... Fred

