Epidendrum ibaguense Flower

This photo was taken during July 2013.
The technical information is as follows.
Camera - Canon EOS 5D Mk II
Shutter speed - 1/200
Aperture - f18.0
Lens - Canon EF 100mm f2.8 Macro USM plus Kenko 48mm Extension Tubes
Focal Length - 100mm
ISO - 200
Nissin MF18 Macro Ring Flash
Filter - Hoya 58mm HD Circular Polariser
Tripod