MBTA_Trains_Trailing_view_at_CP_AY_IMG_0612 June 8, 2013 1024 × 1536 Ayer Massachusetts, June 5, 2013 MBTA trains at Ayer, Massachusetts. Canon EOS 7D with f2.8 200mm set at f8.0 at 1/500 second at ISO 200. Like this:Like Loading... Share this:FacebookEmailTwitterMoreWhatsAppLike this:Like Loading...