The lens is excellent on the 5 D III but very heavy - app. 1, 1 kgs. Just for fun I have adapted it with my FotodioX adapter on the M 240 and made only one single photo with it - this was absolutely OK. I will send this example to the forum. It is made with wide open aperture = f 4.0 because otherwise I had to shut down aperture with the Canon camera before. It is not possible to do this with the M 240 and the adapter. Vignetting will be lower when aperture set down by one or two steps. Focal length 11mm
By February 2003, I was beginning to understand digital capture, and selected the highest quality JPG on the PDR-M70, which compressed the file 10:1. It made the file 1MB, and since I only had 16MB available on the card I had to be careful what I shot. Now, 128MB is available. Captured at 3.3MB.