Went back to the Historic Santa Clara Depot today. I wanted to experiment with the Kenko Extension Tubes and my new EF 70-200mm f/2.8 L IS II. The last time, I only had my EF 50mm f/1.4 + 35mm Kenko. It did a good job, but I was somewhat limited in the distance I could focus on (~2-4"), and using the 200mm gave me some additional distance to work with (~1-3'). I also got to try out the EF 100mm f/2.8 L IS macro. Nice lens. Its a little easier to work with than a zoom/prime + extension tube, but in some ways its not as flexible. Still, I’ll have to keep that in mind down the road.
Had a really good time taking pictures. Some of the guys there even offer to take down the clear plastic that keeps out so you can get a better image. Awesome. If you want to practice taking pictures of miniature (mostly) static scenes, I highly recommend it. I would also suggest a flash. It will allow you to keep the ISO < 800-1600 which will help with hand-holding and motion shots (like the trains). You could also bring a monopod, don’t bother with a tripod, there isn’t enough room and other people are likely to help you out by tripping on it.