On Fri, Jun 09, 2000 at 09:02:38AM -0500, W. J. Liles wrote:
> frieder.faig@xxxxxxxxxxxxxxxxxxxxxxxxx wrote:
> >
> > P.S: Qutation :"Objektive: OLYMPUS OM-APO TELE 11,0/1000 mm mit bzw. ohne
> > 2fach
> > Telekonverter." - How long since that this lens is called APO? - Have
> > there been any changes
> > in optics or only in labeling?
> >
>
> I believe the 1000mm has always been an APO. It uses an old formulation
> that does not require high density glasses or fluorite crystals. By the
> same token it cannot be made very fast. Apochromatic lense designs have
> been around for a long, long time.
> Jerry Liles
Yes, now I beleve it too. Because in the previous mentioned Lens-overview from
1978 they
decriped the 11/1000 to contain 'apochromatic type elements'. Seem`s that
Olympus tried to
be as reserved as possible with labeling their product`s with marketing-terms.
Frieder Faig
< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
|