Hi, Peter. Many thanks for your kind comments. No, I'm not a professional photographer. My Ph.D thesis was on a History of Photography subject though, and you can read a bit about my activities in that area on my web site
I don't normally provide details about my pictures since I find that most people who look at them aren't really interested in the technical stuff. Besides which, pre-digital, the only SLR camera I have which can record that information is a Nikon F4 with data back. Many of those 'travel' photographs date back a while and I wasn't always scrupulous about keeping a record when using slide or film.
I have gone digital. My first serious camera was a Pentax Spotmatic, and I bought a Pentax DSLR in order to use the lenses. But I still love my R6 and the beautiful Leitz and Angenieux lenses. As I said, most of the 'travel' photographs were taken using the R6 and the 100/2.8.
If you look at the little section on my Picasa site of Spiders' webs, all the pictures there are digital except the album cover picture which was taken with my Angenieux 180 and Astia 100. I did a test taking that particular shot with D, film and slide. I thought slide won hands down!