On Sat, Jul 3, 2010 at 1:56 AM, Bob W <[email protected]> wrote: >> All my FourThirds and Micro-FourThirds bodies allow me to enable >> second curtain sync any time I want, with any flash. IIRC, both my >> Sony R1 and my Canon 10D allowed the same. >> >> The algorithm is very simple: the flash is triggered about 300ms >> before the second curtain is released. So it obviously works best with >> exposure times of a half second or longer, but then that's when I'd >> use second curtain sync anyway. >> > > I've found it most effective for my taste at 1/15th second, generally when > there's already quite a lot of ambient light in the scene. These pictures > from midsummer a few years ago are my most successful and (I think) > effective efforts, shot at 1/15th. All shot with an Oly E-1 and Oly flash of > some sort. > > Start here, and click through about 8 snaps: > <http://www.web-options.com/Pick2008/content/_6207819_large.html>
Thanks for the photos ... good stuff! The trigger lead time is shorter than I wrote. A 125 second flash burn is 8 ms and that's a long burn; they probably do trigger with 30 ms lead, not 300. :-) -- Godfrey godfreydigiorgi.posterous.com -- 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.
