Which 55/f2.8 is required for the ES-1? The AIS version only goes to 1:2 unassisted, so I would guess that it still needs a tube. The AF version goes to 1:1 unassisted, but its manual focus feel is, well, not optimal.
I guess that the 105/f2.8 AFD or AFS need too much distance to the ES-1? Is it that much more than a 55/f2.8? I've never seen the ES-1 in person but it looks to me as if it threads onto the lens using the filter threads. Perhaps that's not correct?
As you might guess, I have lots of old slides - mostly of fairly low quality but of historical or sentimental value - and I also have both a 55/f2.8 AIS and a 105/f2.8 AFD, so figuring out how to use the inexpensive ES-1 seems like an attractive proposition. (Most of those old slides were shot on 126-format cameras with plastic lenses, an Exakta VX with a Zeiss lens but beginner technique, or with a Fujica SLR and Quantaray lenses. Some of them came from the FM2n with Nikkors, but that's a relatively small proportion.)
_____ Brian... a bicoastal Nikonian and Team Member
My gallery is online. Comments and critique welcomed any time!