Kay mentioned... "So if I may turn this thread into a side street, has anyone been on a photo tour, where a group goes with a 'guide/pro photog' to a destination abroad for them & what were your experiences?"
I think that Donald hit the nail on the head regarding the different experiences on different tours...
I attended on presentation by a famous photo your guide (who will remain nameless) and talked to a woman who had gone on a previous trip with this guide.
Apparently, he blends his photo tours with other tour groups rather than leading a specifically photo oriented tour.. She thought that this was wonderful because, "He told me all about f/stops and composition."
That is certainly not the way I would consider taking a "photo" tour.
I took a non-photo oriented 13-day tour to China several years ago. I saw more of China that way (for a far lower cost) than I could have if I were traveling on my own. However, if I were traveling on my own, I would have spent more time in the areas that I likes and less time in other areas.
Here is a capsule of what happened outside the Forbidden City in Tienanmen Square. The guide said: "I will tell you about the areas we visit and then give you a few minutes to shoot your pictures." If seems like I was always running after the group because I wanted more than a few minutes to shoot my pictures...
During my cruise to Greece, my wife wanted to take a bus tour of Athens... I wanted to take the subway and local busses but, was over-ruled by "the boss". The bus tour stopped at the presidential palace for a few minutes and then left, just as the changing of the guard was taking place. I saw the changing of guard from the back window of the bus...
I would love to return to China someday. However, I would like to do it on my own and spend time in the places that I want to visit and explore. I would love to see the Li River at sunset. The day I was there was pouring rain...