frank_dineen Posted January 24, 2008 Share Posted January 24, 2008 I have a f4.5 135mm optar lens with two pin flash connection.How do I adapt this for a modern electronic flash unit? Frank Link to comment Share on other sites More sharing options...
pje Posted January 24, 2008 Share Posted January 24, 2008 Get a bipost sync cable. Get a bipost sync cable. <a href="http://www.paramountcords.com/bipost.asp">Paramount Cords</a> has them. Link to comment Share on other sites More sharing options...
bob_salomon Posted January 24, 2008 Share Posted January 24, 2008 An electric shaver cord or a TV cheater cord has the same posts. But is your shutter X or M or both for synch? Link to comment Share on other sites More sharing options...
pvp Posted January 24, 2008 Share Posted January 24, 2008 You need X sync for electronic flash. If your shutter has only M sync, it will fire before the shutter is fully open. Once you have the right connector for the bipole, you can buy adapters or just cobble the ends of two cords together; there're no fancy electronics involved. If you roll your own, be sure to insulate all the connections; the voltages that some flashes put onto the sync cord can be impressive... Link to comment Share on other sites More sharing options...
michael_gilday Posted January 24, 2008 Share Posted January 24, 2008 *Every* old press-camera shutter I've ever come across will do X-sync, if it does any sort of sync at all. (The focal-plane shutter on a Speed Graphic, obviously, being an exception.) If, as I suspect, yours is a 1-1/400 Graphex shutter with a bix "(X)" on it - an 'X' in parentheses - then it *only* does X-sync, and you've no worries. Otherwise, you get X sync by setting it to 'M', and not cocking the synchronizer. Easy. :) Link to comment Share on other sites More sharing options...
michael_briggs2 Posted January 24, 2008 Share Posted January 24, 2008 See "kodak ektar bipost question" from earlier in this month, at http://www.photo.net/bboard/q-and-a-fetch-msg?msg_id=00NrMZ Link to comment Share on other sites More sharing options...
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