Along time ago Ken writes:
> I'm
> not sure about the IS-10 and other variants, but wouldn't be surprised if
> they also contained an ED element.
The IS-10 has a single Aspherical element and no ED element. Aspherical
elements are typically employed in a wide to tele zoom to prevent gross
pincushion and barrel distortions, although known to yield less noticable (but
visually wierd) waveform distortion instead. I can't say I've really noticed
in pictures taken with it though.
Gary Reese
Las Vegas, NV
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