Roger Cicala reveals winners of First Annual Photogeek contest

How about . . .

28:1 with a single (Nikkor) lens and no TC?

http://www.dpreview.com/forums/post/21952208

(Direct imaging of diffraction rings.)

Source Article from http://www.dpreview.com/news/2013/12/02/roger-cicala-reveals-winners-of-first-annual-photogeek-contest