Re: Lens fungus?

Might also be lubricant which evaporated and deposited itself on an
element.



"dr bob" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
>
> "Lunaray" <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
> > I just purchased a lens on ebay and and from all outward
appearances it's
> in
> > excellent condition, except when I look at the front element at an
angle,
> I
> > can see some very faint fogging, kinda' like you would see if the
glass
> were
> > cold and brought into a warm room, should I be concerned with
this?  It's
> > very slight, and straight-on, the glass is very clear!  If it is a
> problem,
> > can elements be taken apart and cleaned at a practical cost?
> >
> > Thanks!
> > -- 
> > Ray ( www.rayspace.com )
>
> Ray: The lens can be disassembled - carefully, but I would recommend
a
> service facility of good repute.  Opening a lens usually costs
around
> $80.00US and can be well worth the cost depending on the lens.  Your
> description sounds a bit like slight deterioration of the cement
between the
> elements.  This sometimes looks like orange peel when observed at
high power
> with transmitted light.  You may well get by with this condition
depending
> on your expectations.  Sometimes a little flare (which is the normal
result
> of the type of "fogging" you describe) is actually beneficial -
depending on
> the subject.
>
> Truly, dr bob.
>
>