Leif,
I see in post #97 you discovered the trials of a reversed 28mm. When I clear out the workshop I will look at a solution to controlling the aperture lever from the side.
I have to admit my last session was a reversed 50 f1.4 on the 105mm to get round the problem. Magnification is not as great though.
Post #100 Superb pictures with your home made flash diffuser and the pop up.

I will try your plastic desert tub idea on the SB80-DX.
Christine,
Jacky's diffusers look great for a pop up in loads of applications.
Dave and Leif,
I got the Manfrotto focussing rail today but have yet to give it a go. Cannot get to a lot of my kit as its in a workshop drawer behind the junk.
Don