I ordered a refurb NX100 the other day and have to send it back. It arrived incomplete. I also ordered a 30mm F2 without thinking that the NX100 might not work for me. So, I thought I might open it up a bit and see if any of the other models might work. I'm having a bit of trouble researching the nuances of the different models. Maybe you can point me toward a reference. I do want to keep things as light($) as I can. I already have a Fuji kit. This is for a back up and occasional use by my ten year old so the kit lens and the 30mm may be all I need. Maybe even scratch the kit and add a 16mm. Thanks for your time.