Thanks for the link, Adrienne. Those are really interesting photos. Does
Anyone know the math for calculating the exposure time if you want an arc
length X of the sun's path on the paper while using a Y focal length lens?
All trademarks and copyrights within the FreeLists archives are owned by
their respective owners.
Everything else ©2000-2012 Avenir Technologies, LLC.
FreeLists is a service of Avenir Technologies, LLC.