Repairing lenses is not particularly easy. Generally one requires
special tools. Invariably, when there is physical damage it is
impossible to avoid touching the inner faces of lenses. Cleaning
finger marks off is again not particularly easy for the ?uninitiated?.
The threads too require special grease for the correct feel and
position retention. The iris must be absolutely devoid of lubrication
-- even a finger smear can prevent correct operation. Demagnetised
after re-assembly is often required too. However, if you are
determined, unscrewing the end ring which buts against outside lens
usually furnishes access to the internals. If there are no slots for
tool engagement, it can be removed by first drilling two small holes
and engaging a tool in the holes. Sometimes you have to remove the
rubber rings to gain access to screws underneath.
Not aware of manuals ever being readily available. Basically, if you
need a manual, you don?t have the skill to repair it I?m afraid. I
would advise against unless you have watch-repairer skill. Perhaps you
could find an old lens to experiment on and refine your skills.
I could advise on grease, cleaning, demagnetisation etc if you think
you could tackle it. Nothing to lose I guess ;-)
Best |
