Tiny screw - Macro - SP60-300 +SP 2X - 40D-01615

2.5mm long screw

Equipment:Canon EOS 40D, Tamron SP 2X teleconverter (01F) with Tamron SP 60-300mm F/3.9-5.4 Zoom Lens (23A). Ring flash.

Settings: Lens macro 1:1.55 setting + X2 (~1.4X life size), ~F/11 on lens (~F/22 effective aperture), 1/260s, ISO 800.