Less Than One Inch

Less than Half an Inch to be precise! These are model railway 8 spoke wagon wheels at a scale 1:152. Representing a 3' wheel the treads are 6mm in diameter with a 0.5mm flange. The wheels are mounted on 1mm diameter axles each 12.25mm over pinpoints. www.2mm.org.uk

 

For this photo I acquires a reversing ring and attached it to my 50mm lens.

Done