In a message dated 9/5/00 9:32:27 PM Pacific Daylight Time,
pcacala@xxxxxxxxxxxxx writes:
> 24mm Shift: special low diffusion
> 40mm f/2: high refractive, low dispersion
> 100mm f/2: special low dispersion and extraordinary partial dispersion
> 180mm f/2: special low dispersion and unique dispersion
> 250mm f/2: special low dispersion and extraordinary partial dispersion
> 300mm f/4.5: high refractive index and extraordinary partial dispersion
> 350mm f/2.8: special low dispersion (2 elements) and extraordinary
> partial dispersion ( 1 element)
> 100-200mm f/5: low color dispersion
> 20mm f/2: high refractive index, low dispersion
> 1.4x-A: special glass
>
> Sure doesn't clarify the situation . . .
>
> Gary Reese
\
I like "unique dispersion" the best. It's obviously unmatched by any other
type of glass.
But it's not another episode of "Godzilla Meets Zuiko" but really "Japanese
Lens Engineers meet Madison Avenue" that accounts for the inventive but
non-descriptive wording.
Warren
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