Element separation is when the glue joint begins to fail. Usually in older balsam cements. It's disturbing but is not normally noticeable in prints, it's much more damaging in theory or imagination.
Originally Posted by R/D
A len with separation can be recemented but the cost is far more than just buying a different lens. IMO the cost is justified only when the lens is very unusual.
But if you have a choice of one with & one without. Get the one without.
Last edited by John Koehrer; 08-06-2009 at 11:02 AM. Click to view previous post history.