I've been toying with this, and I have come to the newbie conclusion that folding only seems possible with the Pro Lens kit. The focal length on the regular collector lens is just too short it seems to make a straightforward design. I can't see any way to keep the triplet out of the way. After a little modeling, I came up with this. The white lines represent the focal lengths accurately. Am I on the right track with this? Also, could I just swap out the standard collector for the 1015 Pro Field Fresnel Lens and keep the rest of the standard lens kit? This way I could get the extra focal length. The reason I am trying this is because, from what I have been reading, I have serious doubts about when, if ever, the Pro Lens ordering problems will be worked out. I know people are doing their best, but sometimes these things just don't work out.
Anyways, anybody got any ideas on this?