I had a rather cool experience last night. I was at a family gathering for Father's Day and my wife asked me take a few shots fo people. It was relatively low light so I put my Panasonic 20 on the camera, switched to AF and fired away. I took a look and while they came out pretty well I decided to try my Olympus OM 50/1.8 and see how it worked. The whole process was a lot slower but I managed to get several decant shots. Later when I got home I took a look at them in Lightroom and much to my surprise the shots with the OM 50 we're a lot nicer. I doubt it has much to do with the lens as the 20 is a fine lens but the more considered way I went about using the 50 as I made the aperture and focus decisions. Also, the more I shot with it the quicker I got with manually focusing the shot. It felt like I was a kid again discovering the joy photography. I think the AF can stay off for a while.