Wow Harry,
I really like the effect you have achieved on the fourth image. Thanks for taking the time to take & post those, even more fired up now.
Seems like the weather is now conspiring against trying more stuff out. 9/10 cloud now, and the next 5 days do not look promising
. Still I suppose it does give time to look at processing options and surfing for more info.
Reading Adey's post on suitable cameras I found this link which also details some suitable and not lenses. Quite impressed as to where my D100 sits in the sensitivity scheme of things as I have found my D2X is not really suitable. Bucket loads of info if you go through the links at the bottom as well.
http://heim.ifi.uio.no/~gisle/photo/ir.html
Don