Found several threads with various levels of information, and wanted to start one consolidated one, as it seem there is conflicting information. This is a Dandelion Chip so we all know what we are talking about. Has anyone used one? Installed one? How well does it work? Do you program the lens information on the screen of the camera, or somehow connect it to your computer? Can you program multiple lenses, or just one per chip at a time? How hard is it to install on an adapter? Seems like it would be a great idea if it works well. If it is too much of a pain, maybe not worth the aggravation. Please let us know if you are talking hypothetically or actual experience in your post, so as to diminish opposing information.