Buffer fitted 43013 leads the 15:50 Exeter St Davids to Sheffield InterCity service across the River Avon at Eckington on 26 June 1995. On this occasion the Pentax 6x7 did not cause problems with uneven exposure at the very necessary 1/1000sec shutter speed used here. The clear blue sky would immediately show this up, usually by a much darker area near the right edge. A very irritating fault that would seemingly come and go at will!