171.801 approached south Croydon with 1E41, the 15:08 from London Bridge to Uckfield, on 10 June 2017. Southern's Class 171s are almost identical to the Class 170s seen elsewhere apart from having Dellner couplers, which allow them to couple to Southern's Class 377 EMUs in exceptional circumstances.
PHOTO DATA FOR IMAGE 17-D-3885
camera : Nikon D5100
lens : 18-200mm f/3.5-5.6
focal length : 46.0 mm (69mm 35mm eq)
shutter : 1/640 sec
aperture : f/8.0
ISO : 250 ISO
original : Digital: 16MP NEF
SUBJECT DATA
Loco / Unit : 171.801
Train : 1E41, 15:08 London Bridge - Uckfield passenger