Cups and balls

I'm trying to get a bit more in my repertoire than just cards. The cups and balls is such a different paradigm - the required sleights, of course, but also the whole basic concept is totally different. So there's heaps to get my head around, as well as my hands. 

Cups and balls

Kimunor 135/3.5 (plus my smallest extension tube, because the MFD of this lens is ridiculous)
Pentax K-30