Entries are now being accepted for the Trainspotting: Powerhouse Museum Photo Competition 2012.

Now in its third year the Trainspotting competition attracts entrants, both amateur and professional, from around the world. From casual observers to avid railway photographers, the competition draws an impressive range of entries.

Trainspotting: the Powerhouse Museum International Photo Competition 2012 is proudly presented by the Museum of Applied Arts and Sciences, commonly known as the Powerhouse Museum, Sydney, Australia.

Entries can be submitted online via the Powerhouse Museum group on Flickr or by post.

Hop to the official website for specific guidelines.

It's free to enter.