Picked this sucker up cheap! It's a relic, and the image quality is fairly atrocious, but that doesn't stop me from loving it Its outlandish design has cemented its place in my lineup of L-lenses
Will I ever end up using it? Now that's a good question... Surprisingly, it zooms in and out relatively fast. AF is also faster than I expected. The motor continues to run as you attempt to zoom below the 35mm mark
Sample photos!!! http://photography-on-the.net ...p?p=12642768&postcount=22
1. showing the internal focus: http://www.flickr.com .../51106637@N05/5861849730/
2. video using lens on 7D, just to show how noisy it is: http://www.flickr.com .../51106637@N05/5861318491/
Note: you cannot activate the zoom buttons while in recording mode OR live view mode!!