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brianv · 05/01/08, 12:41 AM

My 1954 9cm F4 Elmar has the button on the side, it is the collapsible lens. To me used properly, the lens has to be extended and the button pressed to focus.

If that sounds like what you have, post back. If it's still confusing (it was to me!), I can post some pictures.

05/01/08, 12:41 AM	#6 (permalink)
brianv Erfahrener Benutzer Join Date: 03/30/06 Posts: 154	Re: ernst leitz 90mm lens My 1954 9cm F4 Elmar has the button on the side, it is the collapsible lens. To me used properly, the lens has to be extended and the button pressed to focus. If that sounds like what you have, post back. If it's still confusing (it was to me!), I can post some pictures.