A very very good thing to do when putting these together is to place a towel or large piece of cloth inside of the capco between the two lenses.....just in case things slip...that way the two lenses cant go crashing into each other and break!
I have put several of these together and fight the heck out of them. The last ones I put together, I asked the little lady to give me a hand and they all snapped together in about 1 minute! definately easier with 4 hands!
Once you do one, it seems things go much smoother after you get the hang of it!
But the towel trick is a MUST, or you quite possibly could break lenses.
