Thanks very much for your comment. My Exa has an unusual rotary shutter and a waste level finder. Plus limited selection of speeds with a lever on the top just to the left of the finder. It's a lot of fun to use, makes a cool sound when the shutter flips, and the pictures from this lens seem to look nice. The little 35mm WLF makes it a little tough to keep the image level, and in bright light it's hard to use, but great to see the image when setting up for the picture.