On the contrary, portrait is about the only thing you can do effectively with this lens. Since it doesn’t have a flat plane of focus, you can never get any mor

On the contrary, portrait is about the only thing you can do effectively with this lens. Since it doesn’t have a flat plane of focus, you can never get any more than a small portion of the picture in focus. You could maybe do a shot with only a single tree in focus, or something, but not a regular landscape.