My last full year before taking the plunge in Feb 2006 and investing in a digital SLR. I suppose in retrospect the main 'theme' for the year was endings - my use of slide film, 86s on Anglia IC services came to an end in September, Hull Trains ended their use of 170s and, more momentously I guess, the last third rail slam door units were withdrawn from mainline service in November / December.

No major overseas visit in 2005, just a few days in Ireland in the summer on the trail of steam and two days in October & December chasing IE's sugar beet trains. Those pictures can be found in my Ireland Collection.
https://nick86235.smugmug.com/Trains/Overseas/Ireland-1975-2007/
Ironically my sugar beet adventures were an ending too. Thanks to changes in the EU subsidy regime 2005 was the final season of large scale commercial sugar beet growing and processing in Ireland.