Delaminating is another term for element seperation. In many lenses some
single elements are formed by gluing two individual elements together with
an opticly transparent glue. Such composites are called groups. You can
tell if an lens has such groups as the specifications for it list fewer
groups than elements.
If what you are seeing is on the front of the lens it is unlikely to be
delamination. If these mirror spots appear to be inside the element and
reflect light the way air bubbles do underwater then it might well be
delamination.
It could only be fixed by replacing the group if the part is still
available.
The value of the lens might not make this an economic proposition.
Giles
lgriffin@xxxxxxxx wrote:
> I've seen the term mention several time about a lens delaminating. I
> recently acquired a Kiron with some Olympus goodies. The Kiron is a
> 28-105 mm f/3.2-4.5 Macro 1:4. There appears to be what I would call
> mirror spots on the front element, is this delimitation. Does this
> require the front element to be replaced, or could it be repaired in a
> CLA?
>
> Regards,
> Larry
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