Beach combing is one of my favourite pastimes. All the ingredients here were found items. The box grid thingy is from an old crabpot and the background is a plastic fishbox which had an interesting texture of algae growth.
To be honest Keith I'm not 100% sure it was the 50mm in this instance. I know I used it alot for most of my close up work because of the greater depth of field for a given aperture, which is very useful when working in close.