Another one is Zuiko 28-85 (not the AF one), John Foster (the one who
wrote the Pen F book, www.biofos.cjb.net) even send me a photo of it.
I have never seen any discussion of this lens in my four years life
with this list or else where.
C.H.Ling
"Fabio J. Flowerside" wrote:
>
> Hi list,
>
> after the "ultra thin" 50mm f/2 (which eventually evolved in the 40mm f/2),
> that I have mentioned in my previous message, surfing the web I came into
> this other never-ever produced Zuiko lens:
>
> http://www.geocities.com/maitani_fan/camera_technologies.html
>
> A 85mm f/1.4 GRIN lens, which was prototyped in 1989.
>
> GRIN stands for "GRadient INdex" that is, a special glass whose refraction
> index is not constant but varies from center to the edge.
>
> In an old photo magazine (dating back to 1984) it was claimed that by
> adopting gradient index glasses is possible to produce a 50mm lens with
> exceptional performance adopting just two (two!) lenses. The same
> improvements in compactness and performance, of course, should be applied to
> any other focal lenght...
>
> It's a pity that wonderful Zuiko never made it...
> (now I'd like to know in which drawer that prototype is currently collecting
> dust... *DROOL*)
>
> :'(
>
> Ciao
>
> Fabio
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