finally the perfect len for SD1

That doesn't seem very fair, maybe some people are genuinely interested in the engineering and design behind these cameras. The past hundred years of photography have been built around modification, ingenuity, and engineering. Doesn't mean a person can't value the art of photography as well.

One of my other hobbies is boatbuilding. I built an attractive little 18' cat yawl motorsailer -- took a good part of two years. Then I sailed it. The two were not mutually exclusive.