#1b: Hartblei 150mm f2.8 medium format in Pentacon six mount, using with tilt adapter on pentax dslr. Huge and very good glass. Looks like I have dropped the lens.
#1c: Pentax K28/3.5 shift, using with tilt adapter on Sony Nex body. and become shift and tilt. A 'Transformer' setup.
#1d: Olympus 35/2.8 shift, leitax mount, on Pentax no-tilt or Nex body with tilt, another 'Transformer' setup.
#1e: Nikkor 28/3.5 PC (shift lens), using with tilt adapter on Nex body, yet another 'Transformer' setup. The nikkor fits in pentax body, but with no tilt. The lens itself is smaller than pentax K28/3.5 shift.
My kids love these setups, especially 1e and 1d.
I added a good CPL filter to complete 1d/1e - ultimate cityscape gear.