Ryan Patrick O'Hara
Veteran
Let it stand as is. While I was delighted to see the thread and where it might go, I also don't care to have things kicked back and forth. A decision was made, its basis was sound, we move on.
That being said, there are people like me that like to know how everything works. There is almost nothing I don't want to take apart to learn how it works. Its a disease many of us have.
http://www.youtube.com/watch?v=CmYDgncMhXw
If you want to know more about these lenses this is a great way to start besides breaking one open.
Zeiss Book
Cooke Book