I think it would be better to start new threads instead of going off topic in every direction. We really need som new threads and that may attract others attention more. By continuing this thread in another direction just misses the attention of those who are interested in the OT subjects, unless they are also interested in the extension tubes and TC discussion. I am sure there are quite a few who would gladly contribute to or read about IR photography and LCD scratches discussions. Chances of getting help are bigger if you increase the number of readers.
I don't mind OT, but I really think there are needs for new topics other than "What's the price of..." and "Where can I buy..." stuff.
I don't mind OT, but I really think there are needs for new topics other than "What's the price of..." and "Where can I buy..." stuff.