A remark as a moderator: we're not too keen on threads that constitute just a single link to an external page. Please consider an alternative:
* Use
the Blogs section to submit blog posts (they don't have to be yours; you can link someone else's blog as well)
* Collect all links to relevant off-site repair articles in a single thread. If you want to use this thread for this, please indicate (use 'report' or send a PM to any of us) and we'll rename it and re-open the thread. If it takes off and becomes a useful resource, we can even sticky it in the future.
* Post a link like this in a thread where it's relevant; i.e. save it for later if CZ lenses of this era pop up in this forum section and then add this link for references.
Thanks!