John, others gearing up (pun intended) for the eclipse this August: I just noticed a reference to a Canon site that has tips on preparation for the event. Including a discussion of focal length, disc image size, corona size, etc. You may find this useful…
http://learn.usa.canon.com/resources/articles/2017/solar-eclipse/choosing-lenses-for-eclipse-photography.shtml stan -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

