FAQ   Can I fit in my Scope? yes you can almost any scope,microscope , telescope, binoculars with eye piese measuring from 22mm to 43mm with UN-2 and 28mm to 50mm with UN-3  if your scope comes with threaded inside the eye pices we have special adaptor for it size 36mm and 38mm .   Which Smartphones I can fit on the adaptor ? almost any smart phone with the 17mm screw lens case you can get this case from (eBay or Amazon) called (eye fish lens case)    What type of camera I can conect to the kit?  at the moment we have only ring for casio serious  we are making more ring for different casio Camera soon. Please watch this demo to see how it will works  http://youtu.be/3BSuntll7PQ Any smart phone.  Code: CCR-1                                EX-ZR100 , EX-ZR200 , EX-ZR300 , EX-ZR400 , EX-ZR500 Code: CCR-2.1 & CCR-2.2           EX-ZR700 , EX-ZR750 ,  EX-ZR800 , EX-ZR850 ,  Code: CCR-3                                EX-ZR1000 , EX-ZR1100 , EX-ZR1200 , EX-ZR1300 , EX-ZR1500 Why casio EX-ZR ?  This is the best photo camera for high speed recording recording up to 1000 frame per second.    Can I conect DSLR to the kit ?  Yes you can all the thread size are m42 standard.