Archived posting to the Leica Users Group, 1996/02/07

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]

Subject: Re: infinity lock
Date: Wed, 7 Feb 1996 16:46:40 -0500
References: <>

>I never did quite understand the infinity lock. Whenever I played with a lens
>so equipped, it always got in the way. Happily, none of my Leitz lenses have
>the lock.

The idea originated on screw-mount lenses, where one has to turn and
turn to mount and dismount the lens.  Often, most of the grabbing
surface is the focussing ring.  With the infinity lock, one doesn't
end up racking the focus all the way one way or another when changing

This is less of a factor for bayonet-mount lenses, and is probably
largely a hold-over, and so is mostly seen on earlier lenses.

        -- Richard (collector and occasional user of Canon screw-mount

Richard Schooler                        Hewlett-Packard                  300 Apollo Drive
(508) 436-5452 fax:5135                 Chelmsford, MA  01824

In reply to: Message from Gang Huang <> (Re: infinity lock)
Message from Gang Huang <> (Re: infinity lock)