When I got my Pentax 6x7 Mk in 1979 I got the 75mm f4.5 'Shift' lens as I was getting some Architectural work for a company needing medium format transparencies of buildings for sale - I did a lot then suddenly the company went BROKE and all the work dried up ! I now use the shift lens occasionally for 'Club' photos -- here are a couple ---

Pentax 6x7 03 by pentaxpete, on Flickr
A local Church -- here I used the shift lens to get rid of several parked cars underneath the blue board so I had to cut off the base of photo.
AGFA ULTRA 50 film processed in C41 myself Pentax 6x7 Mk II

Ultra 05 by pentaxpete, on Flickr

Here is an interior of a well-known Church on Pentax 6x78 Mk I and Ilford XP1 film. Time exposure + a few flashes from Mecablitz 45CT1

All Saints Warley by pentaxpete, on Flickr