Yeah MaulMaus, the exhibit’s lighting is pretty touch and go and a test of one’s patience. 
I exhausted 100 shots on Zam in about 40 minutes, Zam I Am right about bringing a Laptop along so you can load up the pics and free up the memory card for more shots, that’s what I did and I got some pretty decent photos.
But you'll be there pretty much the whole day so you should be able to get some primo shots of Zam. 
Patience, memory and extra batteries go along way. 