>
> Alex writes:
>
> > Also, I thought both OM designs
> > were more "Sonnar" like (Zeiss 85F2.8/Canon 85F1.8FD) than gaussian(Canon
> > 85F1.8SSC)?
>
> You got me there. My Canon reference library doesn't have any books with
> optical designs. In fact, I can't find good enough matches to any named type
> of design or lens in the Nikon and Minolta lines. So, I guess it proves that
> either 85mm Zuiko was radical, eh?
>
> "Gaussian." I must have been off my rocker! That is a symmetrical design.
>
> Gary Reese
> Las Vegas, NV
>
The 100/2 is a modified Gauss. The 5-element 85 is a Sonnar type.
Sonnar is a triplet with the forward + replaced by the front half from
a Gauss.
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