"AL, a molded plastic non-spherical element, instead of several glass
elements. A cheaper way to build a lens."
>From the February 2002 Shutterbug, in a review of the 24-90 and the 31
Limited:
"Such 'hybrid' aspherics [i.e., bonding resin to the glass] are used in
the zoom lens [i.e., the FA 24-90] while the Limited model incorporates
more expensive ground and polished aspherical elements."
Joe
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