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Message: <blockquote data-quote="Alexis Powell" data-source="post: 1864588" data-attributes="member: 5327">The "new" focusing system of the Ultravid was marketing hype. The only  new thing was the use of titanium components in place of what were stainless steel in the equally grease-free Trinovid.  I attribute the sticky focus of the Ultravid to its use of titanium, which is notorious for its tendency to grab and gall, but I don't know that anyone has investigated.  Actually, the Trinovid focus can also be a bit notchy, but it is rarely as noticeable as in the Ultravid.  Leica began adding teflon disks to the Ultravid later in production (and as a retrofit for Ultravid owners who complained and sent their bins in for service), and this change was re-marketed prominently when the HD were released.--AP</blockquote>