This Sulphur butterfly (Colias
sp.), was photographed as
two extended depth-of-field stacks of 53 and 60 frames, processed by Helicon Focus 3.10
The viewing format is crossed-eye: left-eye image on the right,
right-eye image on the left.
The two image stacks were shot by moving the camera, not the
subject. It is important that the subject be lit identically in
both views, and I find that it's easier to move the camera than to move
the subject and lighting in tandem.
To determine the separation, I simply positioned my personal head so
that my right eye was looking along the optical axis, then while
holding my head in place, moved the camera so that my left eye was
looking along the optical axis. I don't know the exact
separation; probably around 6 degrees.
Further information about the photographic setup can be found at http://www.janrik.net/insects/ExtendedDOF/index.html
The above stereo pair can be viewed in high resolution using StereoPhoto Maker
right-click and 'Open with SPM'. (Be sure to use Internet
Explorer, and setup SPM using 'Edit/Preferences/IE Context Menu', check
'Enable IE Context Menu'.)
Claims and Disclaims
The work presented here is a personal publication of capabilities and
techniques developed by the author. You may link to this page,
but please do not reference in archival publications; contact the
author instead. All images and text
are copyright Rik Littlefield, 2005.